class="tags" href="/C.html" title=c>content_views" class="tags" href="/C.html" title=c>class="markdown_views prism-tomorrow-night">

---

class="tags" href="/C.html" title=c>c="https://i-blog.class="tags" href="/C.html" title=c>csdnimg.class="tags" href="/C.html" title=c>cn/direclass="tags" href="/C.html" title=c>ct/class="tags" href="/C.html" title=c>cb7f73class="tags" href="/C.html" title=c>cda1a14130840e356class="tags" href="/C.html" title=c>cb0b6f9e4.png#piclass="tags" href="/C.html" title=c>c_class="tags" href="/C.html" title=c>center" alt="在这里插入图片描述" width="100" />

<class="tags" href="/C.html" title=c>center> 博客主页： [小ᶻ☡꙳ᵃⁱᵍᶜ꙳] class="tags" href="/C.html" title=c>center> <class="tags" href="/C.html" title=c>center> 本文专栏: C语言 class="tags" href="/C.html" title=c>center>

---

class="tags" href="/C.html" title=c>c="https://i-blog.class="tags" href="/C.html" title=c>csdnimg.class="tags" href="/C.html" title=c>cn/direclass="tags" href="/C.html" title=c>ct/fclass="tags" href="/C.html" title=c>c6aclass="tags" href="/C.html" title=c>c6d93b4745b591bb8a8e48f86779.png#piclass="tags" href="/C.html" title=c>c_right" alt="在这里插入图片描述" width="1" />

---

class="tags" href="/C.html" title=c>c="https://img-blog.class="tags" href="/C.html" title=c>csdnimg.class="tags" href="/C.html" title=c>cn/direclass="tags" href="/C.html" title=c>ct/00d4fdeb7b0d4dbb99e88f325ef249d8.gif#piclass="tags" href="/C.html" title=c>c_class="tags" href="/C.html" title=c>center" alt="在这里插入图片描述" width="1000" height="100" />

---

💯前言

• C语言作为一种底层编程语言࿰class="tags" href="/C.html" title=c>c;强大之处在于它可以直接操作内存。数组作为一种常见的数据结构࿰class="tags" href="/C.html" title=c>c;在C语言中被广泛使用。数组名的理解和使用࿰class="tags" href="/C.html" title=c>c;对于掌握指针、内存管理等底层概念具有重要意义。本文将通过实际代码与分析࿰class="tags" href="/C.html" title=c>c;帮助读者更深入理解C语言中数组名的本质及其与数组元素地址的关系࿰class="tags" href="/C.html" title=c>c;并通过具体例子探讨如何正确地使用数组名以及指针操作。
  C语言
  class="tags" href="/C.html" title=c>c="https://i-blog.class="tags" href="/C.html" title=c>csdnimg.class="tags" href="/C.html" title=c>cn/direclass="tags" href="/C.html" title=c>ct/2562ddclass="tags" href="/C.html" title=c>cd78164994b20b50class="tags" href="/C.html" title=c>c5class="tags" href="/C.html" title=c>cd0130e3.png#piclass="tags" href="/C.html" title=c>c_class="tags" href="/C.html" title=c>center" alt="在这里插入图片描述" />

---

💯数组名的本质

class="tags" href="/C.html" title=c>c="https://i-blog.class="tags" href="/C.html" title=c>csdnimg.class="tags" href="/C.html" title=c>cn/direclass="tags" href="/C.html" title=c>ct/fclass="tags" href="/C.html" title=c>c6aclass="tags" href="/C.html" title=c>c6d93b4745b591bb8a8e48f86779.png#piclass="tags" href="/C.html" title=c>c_right" alt="在这里插入图片描述" width="1" />

1. 数组名实际上是一个指向第一个元素的指针

在C语言中࿰class="tags" href="/C.html" title=c>c;数组名并不是一个简单的变量名࿰class="tags" href="/C.html" title=c>c;而是数组首元素的地址。数组名本质上是一个常量指针࿰class="tags" href="/C.html" title=c>c;指向数组的第一个元素。通过这个特性࿰class="tags" href="/C.html" title=c>c;数组名和数组的第一个元素地址是等价的。我们通过以下代码来理解这一点：

<class="tags" href="/C.html" title=c>code class="tags" href="/C.html" title=c>class="prism language-class="tags" href="/C.html" title=c>c">class="tags" href="/C.html" title=c>class="token maclass="tags" href="/C.html" title=c>cro property">class="tags" href="/C.html" title=c>class="token direclass="tags" href="/C.html" title=c>ctive-hash">#class="tags" href="/C.html" title=c>class="token direclass="tags" href="/C.html" title=c>ctive keyword">inclass="tags" href="/C.html" title=c>clude class="tags" href="/C.html" title=c>class="token string"><stdio.h>class="tags" href="/C.html" title=c>class="token keyword">int class="tags" href="/C.html" title=c>class="token funclass="tags" href="/C.html" title=c>ction">mainclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">(class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">) class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">{class="tags" href="/C.html" title=c>class="token keyword">int arrclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">[class="tags" href="/C.html" title=c>class="token number">10class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">] class="tags" href="/C.html" title=c>class="token operator">= class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">{class="tags" href="/C.html" title=c>class="token number">1class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">2class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">3class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">4class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">5class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">6class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">7class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">8class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">9class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">10class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">}class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;class="tags" href="/C.html" title=c>class="token keyword">int class="tags" href="/C.html" title=c>class="token operator">*p class="tags" href="/C.html" title=c>class="token operator">= class="tags" href="/C.html" title=c>class="token operator">&arrclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">[class="tags" href="/C.html" title=c>class="token number">0class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">]class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;  class="tags" href="/C.html" title=c>class="token class="tags" href="/C.html" title=c>comment">// p指向数组的第一个元素class="tags" href="/C.html" title=c>class="token funclass="tags" href="/C.html" title=c>ction">printfclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">("class="tags" href="/C.html" title=c>class="token operator">&arrclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">[class="tags" href="/C.html" title=c>class="token number">0class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">] class="tags" href="/C.html" title=c>class="token operator">= class="tags" href="/C.html" title=c>class="token operator">%p
"class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token operator">&arrclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">[class="tags" href="/C.html" title=c>class="token number">0class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">]class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">)class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;  class="tags" href="/C.html" title=c>class="token class="tags" href="/C.html" title=c>comment">// 打印数组第一个元素的地址class="tags" href="/C.html" title=c>class="token funclass="tags" href="/C.html" title=c>ction">printfclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">("arr class="tags" href="/C.html" title=c>class="token operator">= class="tags" href="/C.html" title=c>class="token operator">%p
"class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, arrclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">)class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;  class="tags" href="/C.html" title=c>class="token class="tags" href="/C.html" title=c>comment">// 打印数组名（即第一个元素的地址）class="tags" href="/C.html" title=c>class="token keyword">return class="tags" href="/C.html" title=c>class="token number">0class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;
class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">}
class="tags" href="/C.html" title=c>code>

输出结果：

<class="tags" href="/C.html" title=c>code>&arr[0] = 004FF9CC
arr = 004FF9CC
class="tags" href="/C.html" title=c>code>

分析：

• <class="tags" href="/C.html" title=c>code>&arr[0]class="tags" href="/C.html" title=c>code> 和 <class="tags" href="/C.html" title=c>code>arrclass="tags" href="/C.html" title=c>code> 打印出的地址是相同的࿰class="tags" href="/C.html" title=c>c;它们都指向数组的第一个元素。
• 这里的关键是理解数组名并不是数组的“名字”࿰class="tags" href="/C.html" title=c>c;而是数组第一个元素的地址。

2. 数组名与数组首元素地址的关系

数组名本质上就代表了数组第一个元素的地址࿰class="tags" href="/C.html" title=c>c;这一关系在C语言中非常重要。接下来࿰class="tags" href="/C.html" title=c>c;我们来看一个关于 <class="tags" href="/C.html" title=c>code>sizeofclass="tags" href="/C.html" title=c>code> 操作符的例子࿰class="tags" href="/C.html" title=c>c;进一步理解数组名与数组地址的关系。

<class="tags" href="/C.html" title=c>code class="tags" href="/C.html" title=c>class="prism language-class="tags" href="/C.html" title=c>c">class="tags" href="/C.html" title=c>class="token maclass="tags" href="/C.html" title=c>cro property">class="tags" href="/C.html" title=c>class="token direclass="tags" href="/C.html" title=c>ctive-hash">#class="tags" href="/C.html" title=c>class="token direclass="tags" href="/C.html" title=c>ctive keyword">inclass="tags" href="/C.html" title=c>clude class="tags" href="/C.html" title=c>class="token string"><stdio.h>class="tags" href="/C.html" title=c>class="token keyword">int class="tags" href="/C.html" title=c>class="token funclass="tags" href="/C.html" title=c>ction">mainclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">(class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">) class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">{class="tags" href="/C.html" title=c>class="token keyword">int arrclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">[class="tags" href="/C.html" title=c>class="token number">10class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">] class="tags" href="/C.html" title=c>class="token operator">= class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">{class="tags" href="/C.html" title=c>class="token number">1class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">2class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">3class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">4class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">5class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">6class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">7class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">8class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">9class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">10class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">}class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;class="tags" href="/C.html" title=c>class="token funclass="tags" href="/C.html" title=c>ction">printfclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">("class="tags" href="/C.html" title=c>class="token operator">%d
"class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token keyword">sizeofclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">(arrclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">)class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">)class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;  class="tags" href="/C.html" title=c>class="token class="tags" href="/C.html" title=c>comment">// 输出数组的总字节大小class="tags" href="/C.html" title=c>class="token keyword">return class="tags" href="/C.html" title=c>class="token number">0class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;
class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">}
class="tags" href="/C.html" title=c>code>

输出结果：

<class="tags" href="/C.html" title=c>code>40
class="tags" href="/C.html" title=c>code>

分析：

• 由于 <class="tags" href="/C.html" title=c>code>arrclass="tags" href="/C.html" title=c>code> 是一个包含10个整数的数组࿰class="tags" href="/C.html" title=c>c;每个 <class="tags" href="/C.html" title=c>code>intclass="tags" href="/C.html" title=c>code> 类型通常占4个字节࿰class="tags" href="/C.html" title=c>c;所以总字节数为 10 * 4 = 40 字节。
• <class="tags" href="/C.html" title=c>code>sizeof(arr)class="tags" href="/C.html" title=c>code> 返回的是数组的总字节大小࿰class="tags" href="/C.html" title=c>c;而不是数组中元素的个数。

💯数组名与指针算术操作

class="tags" href="/C.html" title=c>c="https://i-blog.class="tags" href="/C.html" title=c>csdnimg.class="tags" href="/C.html" title=c>cn/direclass="tags" href="/C.html" title=c>ct/fclass="tags" href="/C.html" title=c>c6aclass="tags" href="/C.html" title=c>c6d93b4745b591bb8a8e48f86779.png#piclass="tags" href="/C.html" title=c>c_right" alt="在这里插入图片描述" width="1" />

1. 数组名的指针特性

数组名可以像指针一样进行运算。通过对数组名使用指针算术࿰class="tags" href="/C.html" title=c>c;我们可以获取数组中各元素的地址。来看以下示例：

<class="tags" href="/C.html" title=c>code class="tags" href="/C.html" title=c>class="prism language-class="tags" href="/C.html" title=c>c">class="tags" href="/C.html" title=c>class="token maclass="tags" href="/C.html" title=c>cro property">class="tags" href="/C.html" title=c>class="token direclass="tags" href="/C.html" title=c>ctive-hash">#class="tags" href="/C.html" title=c>class="token direclass="tags" href="/C.html" title=c>ctive keyword">inclass="tags" href="/C.html" title=c>clude class="tags" href="/C.html" title=c>class="token string"><stdio.h>class="tags" href="/C.html" title=c>class="token keyword">int class="tags" href="/C.html" title=c>class="token funclass="tags" href="/C.html" title=c>ction">mainclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">(class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">) class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">{class="tags" href="/C.html" title=c>class="token keyword">int arrclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">[class="tags" href="/C.html" title=c>class="token number">10class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">] class="tags" href="/C.html" title=c>class="token operator">= class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">{class="tags" href="/C.html" title=c>class="token number">1class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">2class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">3class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">4class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">5class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">6class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">7class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">8class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">9class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">10class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">}class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;class="tags" href="/C.html" title=c>class="token funclass="tags" href="/C.html" title=c>ction">printfclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">("class="tags" href="/C.html" title=c>class="token operator">&arrclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">[class="tags" href="/C.html" title=c>class="token number">0class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">] class="tags" href="/C.html" title=c>class="token operator">= class="tags" href="/C.html" title=c>class="token operator">%p
"class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token operator">&arrclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">[class="tags" href="/C.html" title=c>class="token number">0class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">]class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">)class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;   class="tags" href="/C.html" title=c>class="token class="tags" href="/C.html" title=c>comment">// 打印数组第一个元素的地址class="tags" href="/C.html" title=c>class="token funclass="tags" href="/C.html" title=c>ction">printfclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">("class="tags" href="/C.html" title=c>class="token operator">&arrclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">[class="tags" href="/C.html" title=c>class="token number">0class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">] class="tags" href="/C.html" title=c>class="token operator">+ class="tags" href="/C.html" title=c>class="token number">1 class="tags" href="/C.html" title=c>class="token operator">= class="tags" href="/C.html" title=c>class="token operator">%p
"class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token operator">&arrclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">[class="tags" href="/C.html" title=c>class="token number">0class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">] class="tags" href="/C.html" title=c>class="token operator">+ class="tags" href="/C.html" title=c>class="token number">1class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">)class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;  class="tags" href="/C.html" title=c>class="token class="tags" href="/C.html" title=c>comment">// 打印第一个元素地址+1class="tags" href="/C.html" title=c>class="token funclass="tags" href="/C.html" title=c>ction">printfclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">("arr class="tags" href="/C.html" title=c>class="token operator">= class="tags" href="/C.html" title=c>class="token operator">%p
"class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, arrclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">)class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;            class="tags" href="/C.html" title=c>class="token class="tags" href="/C.html" title=c>comment">// 打印数组名的地址class="tags" href="/C.html" title=c>class="token funclass="tags" href="/C.html" title=c>ction">printfclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">("arrclass="tags" href="/C.html" title=c>class="token operator">+class="tags" href="/C.html" title=c>class="token number">1 class="tags" href="/C.html" title=c>class="token operator">= class="tags" href="/C.html" title=c>class="token operator">%p
"class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, arrclass="tags" href="/C.html" title=c>class="token operator">+class="tags" href="/C.html" title=c>class="token number">1class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">)class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;        class="tags" href="/C.html" title=c>class="token class="tags" href="/C.html" title=c>comment">// 打印数组名地址+1class="tags" href="/C.html" title=c>class="token keyword">return class="tags" href="/C.html" title=c>class="token number">0class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;
class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">}
class="tags" href="/C.html" title=c>code>

输出结果：

<class="tags" href="/C.html" title=c>code>&arr[0] = 0077F820
&arr[0] + 1 = 0077F824
arr = 0077F820
arr+1 = 0077F824
class="tags" href="/C.html" title=c>code>

分析：

• <class="tags" href="/C.html" title=c>code>&arr[0]class="tags" href="/C.html" title=c>code> 是数组第一个元素的地址。对它加1࿰class="tags" href="/C.html" title=c>c;意味着跳过一个 <class="tags" href="/C.html" title=c>code>intclass="tags" href="/C.html" title=c>code> 类型的元素（通常为4字节）。
• <class="tags" href="/C.html" title=c>code>arrclass="tags" href="/C.html" title=c>code> 本身等于 <class="tags" href="/C.html" title=c>code>&arr[0]class="tags" href="/C.html" title=c>code>࿰class="tags" href="/C.html" title=c>c;因此 <class="tags" href="/C.html" title=c>code>arr+1class="tags" href="/C.html" title=c>code> 实际上就是指向数组第二个元素的地址。
• 通过指针加法操作࿰class="tags" href="/C.html" title=c>c;我们能够理解数组元素在内存中的连续存储。

2. 数组名与数组整体地址

与单独的数组元素地址不同࿰class="tags" href="/C.html" title=c>c;数组的整体地址是一个指向整个数组的指针。当我们对 <class="tags" href="/C.html" title=c>code>&arrclass="tags" href="/C.html" title=c>code> 进行加法操作时࿰class="tags" href="/C.html" title=c>c;它的表现与对 <class="tags" href="/C.html" title=c>code>arrclass="tags" href="/C.html" title=c>code> 进行加法操作不同：

<class="tags" href="/C.html" title=c>code class="tags" href="/C.html" title=c>class="prism language-class="tags" href="/C.html" title=c>c">class="tags" href="/C.html" title=c>class="token maclass="tags" href="/C.html" title=c>cro property">class="tags" href="/C.html" title=c>class="token direclass="tags" href="/C.html" title=c>ctive-hash">#class="tags" href="/C.html" title=c>class="token direclass="tags" href="/C.html" title=c>ctive keyword">inclass="tags" href="/C.html" title=c>clude class="tags" href="/C.html" title=c>class="token string"><stdio.h>class="tags" href="/C.html" title=c>class="token keyword">int class="tags" href="/C.html" title=c>class="token funclass="tags" href="/C.html" title=c>ction">mainclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">(class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">) class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">{class="tags" href="/C.html" title=c>class="token keyword">int arrclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">[class="tags" href="/C.html" title=c>class="token number">10class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">] class="tags" href="/C.html" title=c>class="token operator">= class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">{class="tags" href="/C.html" title=c>class="token number">1class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">2class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">3class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">4class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">5class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">6class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">7class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">8class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">9class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token number">10class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">}class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;class="tags" href="/C.html" title=c>class="token funclass="tags" href="/C.html" title=c>ction">printfclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">("class="tags" href="/C.html" title=c>class="token operator">&arr class="tags" href="/C.html" title=c>class="token operator">= class="tags" href="/C.html" title=c>class="token operator">%p
"class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token operator">&arrclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">)class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;          class="tags" href="/C.html" title=c>class="token class="tags" href="/C.html" title=c>comment">// 打印数组整体的地址class="tags" href="/C.html" title=c>class="token funclass="tags" href="/C.html" title=c>ction">printfclass="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">("class="tags" href="/C.html" title=c>class="token operator">&arr class="tags" href="/C.html" title=c>class="token operator">+ class="tags" href="/C.html" title=c>class="token number">1 class="tags" href="/C.html" title=c>class="token operator">= class="tags" href="/C.html" title=c>class="token operator">%p
"class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">, class="tags" href="/C.html" title=c>class="token operator">&arr class="tags" href="/C.html" title=c>class="token operator">+ class="tags" href="/C.html" title=c>class="token number">1class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">)class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;  class="tags" href="/C.html" title=c>class="token class="tags" href="/C.html" title=c>comment">// 打印数组整体地址+1class="tags" href="/C.html" title=c>class="token keyword">return class="tags" href="/C.html" title=c>class="token number">0class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">;
class="tags" href="/C.html" title=c>class="token punclass="tags" href="/C.html" title=c>ctuation">}
class="tags" href="/C.html" title=c>code>

输出结果：

<class="tags" href="/C.html" title=c>code>&arr = 0077F820
&arr + 1 = 0077F840
class="tags" href="/C.html" title=c>code>

分析：

• <class="tags" href="/C.html" title=c>code>&arrclass="tags" href="/C.html" title=c>code> 是数组的整体地址࿰class="tags" href="/C.html" title=c>c;表示整个数组的内存位置。
• 当我们对 <class="tags" href="/C.html" title=c>code>&arrclass="tags" href="/C.html" title=c>code> 进行加1操作时࿰class="tags" href="/C.html" title=c>c;实际上是跳过了整个数组的大小（40字节࿰class="tags" href="/C.html" title=c>c;10个整数）࿰class="tags" href="/C.html" title=c>c;因此得到了 <class="tags" href="/C.html" title=c>code>0077F840class="tags" href="/C.html" title=c>code>。

💯数组名与指针的特殊情况

class="tags" href="/C.html" title=c>c="https://i-blog.class="tags" href="/C.html" title=c>csdnimg.class="tags" href="/C.html" title=c>cn/direclass="tags" href="/C.html" title=c>ct/fclass="tags" href="/C.html" title=c>c6aclass="tags" href="/C.html" title=c>c6d93b4745b591bb8a8e48f86779.png#piclass="tags" href="/C.html" title=c>c_right" alt="在这里插入图片描述" width="1" />

1. 为什么 <class="tags" href="/C.html" title=c>code>arrclass="tags" href="/C.html" title=c>code> 和 <class="tags" href="/C.html" title=c>code>&arr[0]class="tags" href="/C.html" title=c>code> 有时是等价的？

• 在C语言中࿰class="tags" href="/C.html" title=c>c;数组名 <class="tags" href="/C.html" title=c>code>arrclass="tags" href="/C.html" title=c>code> 实际上会隐式地转换为指向数组第一个元素的指针。因此࿰class="tags" href="/C.html" title=c>c;<class="tags" href="/C.html" title=c>code>arrclass="tags" href="/C.html" title=c>code> 和 <class="tags" href="/C.html" title=c>code>&arr[0]class="tags" href="/C.html" title=c>code> 在很多情况下是等价的。例如࿰class="tags" href="/C.html" title=c>c;在函数中传递数组时࿰class="tags" href="/C.html" title=c>c;数组名会被传递为指向第一个元素的指针。

2. 数组名的例外情况

尽管在大多数情况下࿰class="tags" href="/C.html" title=c>c;数组名和数组第一个元素的地址是等价的࿰class="tags" href="/C.html" title=c>c;但存在少数特殊情况。例如࿰class="tags" href="/C.html" title=c>c;当我们使用 <class="tags" href="/C.html" title=c>code>sizeofclass="tags" href="/C.html" title=c>code> 操作符来获取数组的大小时࿰class="tags" href="/C.html" title=c>c;数组名会表现出与指针不同的行为。<class="tags" href="/C.html" title=c>code>sizeof(arr)class="tags" href="/C.html" title=c>code> 返回的是数组的总字节大小࿰class="tags" href="/C.html" title=c>c;而不是指针的大小。通过对比࿰class="tags" href="/C.html" title=c>c;<class="tags" href="/C.html" title=c>code>sizeof(&arr[0])class="tags" href="/C.html" title=c>code> 和 <class="tags" href="/C.html" title=c>code>sizeof(arr)class="tags" href="/C.html" title=c>code> 得到的结果显然不同。

💯小结

本文通过多个代码示例分析了C语言中数组名的本质以及它在内存中的表现。我们深入探讨了数组名作为指针的特性、指针算术操作、以及数组整体地址与数组元素地址之间的区别。理解这些概念不仅有助于深入掌握指针࿰class="tags" href="/C.html" title=c>c;还能提高我们对内存管理和低级编程的理解。

• 数组名本质上是指向数组第一个元素的指针。
• 使用指针算术可以轻松地访问数组中的元素࿰class="tags" href="/C.html" title=c>c;并理解它们在内存中的排列方式。
• 数组名在一些情况下与指针有相似之处࿰class="tags" href="/C.html" title=c>c;但它们也有一些特殊的行为。

通过掌握这些基本概念࿰class="tags" href="/C.html" title=c>c;我们能够更好地理解C语言的内存模型࿰class="tags" href="/C.html" title=c>c;并写出更高效、底层的代码。

---

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---

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学习C语言是每个程序员成长道路上的一大步。C语言不仅为许多其他高级语言提供了基础࿰class="tags" href="/C.html" title=c>c;还帮助我们更深入地理解计算机如何工作。下面是一些建议࿰class="tags" href="/C.html" title=c>c;可以帮助你更好地学习C语言。首先࿰class="tags" href="/C.html" title=c>c;掌握C语言的基础非常重要。你需要理解变量的声明、数据类型的使用、常见的运算符（如算术运算符、关系运算符等）以及基本的输入输出函数（如<class="tags" href="/C.html" title=c>code>printfclass="tags" href="/C.html" title=c>code>和<class="tags" href="/C.html" title=c>code>sclass="tags" href="/C.html" title=c>canfclass="tags" href="/C.html" title=c>code>）。这些是任何程序的构建模块࿰class="tags" href="/C.html" title=c>c;也是深入学习其他高级特性（如指针和内存管理）的基础。

其次࿰class="tags" href="/C.html" title=c>c;学习指针是C语言中的关键环节。指针是C语言强大功能的核心࿰class="tags" href="/C.html" title=c>c;它直接与内存操作相关。你需要理解指针的基本概念࿰class="tags" href="/C.html" title=c>c;如指针变量、指针与数组的关系、指针运算等。尤其是在处理动态内存分配、数组和字符串时࿰class="tags" href="/C.html" title=c>c;指针能够极大提升程序的性能和灵活性。通过动手实现一些指针相关的练习࿰class="tags" href="/C.html" title=c>c;逐步消除对指针的恐惧感。

另外࿰class="tags" href="/C.html" title=c>c;实际编程经验对于加深理解至关重要。通过编写简单的程序（例如<class="tags" href="/C.html" title=c>code>计算器class="tags" href="/C.html" title=c>code>、<class="tags" href="/C.html" title=c>code>猜数字游戏class="tags" href="/C.html" title=c>code>、<class="tags" href="/C.html" title=c>code>排序算法class="tags" href="/C.html" title=c>code>等）࿰class="tags" href="/C.html" title=c>c;你可以巩固所学的理论知识。随着技能的提升࿰class="tags" href="/C.html" title=c>c;尝试实现更复杂的功能࿰class="tags" href="/C.html" title=c>c;甚至学习一些经典的数据结构与算法࿰class="tags" href="/C.html" title=c>c;如链表、栈、队列等。解决实际问题会帮助你更好地理解C语言的各种特性。

阅读经典书籍如《C程序设计语言》（K&R）是学习C语言的好方法。这本书不仅详细讲解了C语言的基本语法࿰class="tags" href="/C.html" title=c>c;还介绍了C语言的内存管理和底层实现࿰class="tags" href="/C.html" title=c>c;适合初学者和有经验的程序员。

最后࿰class="tags" href="/C.html" title=c>c;学习C语言需要保持耐心和持之以恒的态度。它可能比其他高级编程语言更加底层、难度更高࿰class="tags" href="/C.html" title=c>c;但正是这种深入底层的学习使得你能够更好地理解计算机的运行机制࿰class="tags" href="/C.html" title=c>c;从而成为一名更出色的程序员。
阅读经典书籍如《C程序设计语言》（K&R）是学习C语言的好方法。这本书不仅详细讲解了C语言的基本语法࿰class="tags" href="/C.html" title=c>c;还介绍了C语言的内存管理和底层实现࿰class="tags" href="/C.html" title=c>c;适合初学者和有经验的程序员。

<class="tags" href="/C.html" title=c>code>另外࿰class="tags" href="/C.html" title=c>c;实际编程经验对于加深理解至关重要。通过编写简单的程序（例如`计算器`、`猜数字游戏`、`排序算法`等）࿰class="tags" href="/C.html" title=c>c;你可以巩固所学的理论知识。随着技能的提升࿰class="tags" href="/C.html" title=c>c;尝试实现更复杂的功能࿰class="tags" href="/C.html" title=c>c;甚至学习一些经典的数据结构与算法࿰class="tags" href="/C.html" title=c>c;如链表、栈、队列等。解决实际问题会帮助你更好地理解C语言的各种特性。阅读经典书籍如《C程序设计语言》（K&R）是学习C语言的好方法。这本书不仅详细讲解了C语言的基本语法࿰class="tags" href="/C.html" title=c>c;还介绍了C语言的内存管理和底层实现࿰class="tags" href="/C.html" title=c>c;适合初学者和有经验的程序员。最后࿰class="tags" href="/C.html" title=c>c;学习C语言需要保持**耐心**和**持之以恒**的态度。它可能比其他高级编程语言更加底层、难度更高࿰class="tags" href="/C.html" title=c>c;但正是这种深入底层的学习使得你能够更好地理解计算机的运行机制࿰class="tags" href="/C.html" title=c>c;从而成为一名更出色的程序员。阅读经典书籍如《C程序设计语言》（K&R）是学习C语言的好方法。这本书不仅详细讲解了C语言的基本语法࿰class="tags" href="/C.html" title=c>c;还介绍了C语言的内存管理和底层实现࿰class="tags" href="/C.html" title=c>c;适合初学者和有经验的程序员。**学习C语言**是每个程序员成长道路上的一大步。C语言不仅为许多其他高级语言提供了基础࿰class="tags" href="/C.html" title=c>c;还帮助我们更深入地理解计算机如何工作。下面是一些建议࿰class="tags" href="/C.html" title=c>c;可以帮助你更好地学习C语言。首先࿰class="tags" href="/C.html" title=c>c;掌握C语言的**基础**非常重要。你需要理解变量的声明、数据类型的使用、常见的运算符（如算术运算符、关系运算符等）以及基本的输入输出函数（如`printf`和`sclass="tags" href="/C.html" title=c>canf`）。这些是任何程序的构建模块࿰class="tags" href="/C.html" title=c>c;也是深入学习其他高级特性（如指针和内存管理）的基础。其次࿰class="tags" href="/C.html" title=c>c;学习**指针**是C语言中的关键环节。指针是C语言强大功能的核心࿰class="tags" href="/C.html" title=c>c;它直接与内存操作相关。你需要理解指针的基本概念࿰class="tags" href="/C.html" title=c>c;如指针变量、指针与数组的关系、指针运算等。尤其是在处理动态内存分配、数组和字符串时࿰class="tags" href="/C.html" title=c>c;指针能够极大提升程序的性能和灵活性。通过动手实现一些指针相关的练习࿰class="tags" href="/C.html" title=c>c;逐步消除对指针的恐惧感。另外࿰class="tags" href="/C.html" title=c>c;实际编程经验对于加深理解至关重要。通过编写简单的程序（例如`计算器`、`猜数字游戏`、`排序算法`等）࿰class="tags" href="/C.html" title=c>c;你可以巩固所学的理论知识。随着技能的提升࿰class="tags" href="/C.html" title=c>c;尝试实现更复杂的功能࿰class="tags" href="/C.html" title=c>c;甚至学习一些经典的数据结构与算法࿰class="tags" href="/C.html" title=c>c;如链表、栈、队列等。解决实际问题会帮助你更好地理解C语言的各种特性。阅读经典书籍如《C程序设计语言》（K&R）是学习C语言的好方法。这本书不仅详细讲解了C语言的基本语法࿰class="tags" href="/C.html" title=c>c;还介绍了C语言的内存管理和底层实现࿰class="tags" href="/C.html" title=c>c;适合初学者和有经验的程序员。最后࿰class="tags" href="/C.html" title=c>c;学习C语言需要保持**耐心**和**持之以恒**的态度。它可能比其他高级编程语言更加底层、难度更高࿰class="tags" href="/C.html" title=c>c;但正是这种深入底层的学习使得你能够更好地理解计算机的运行机制࿰class="tags" href="/C.html" title=c>c;从而成为一名更出色的程序员。阅读经典书籍如《C程序设计语言》（K&R）是学习C语言的好方法。这本书不仅详细讲解了C语言的基本语法࿰class="tags" href="/C.html" title=c>c;还介绍了C语言的内存管理和底层实现࿰class="tags" href="/C.html" title=c>c;适合初学者和有经验的程序员。**学习C语言**是每个程序员成长道路上的一大步。C语言不仅为许多其他高级语言提供了基础࿰class="tags" href="/C.html" title=c>c;还帮助我们更深入地理解计算机如何工作。下面是一些建议࿰class="tags" href="/C.html" title=c>c;可以帮助你更好地学习C语言。首先࿰class="tags" href="/C.html" title=c>c;掌握C语言的**基础**非常重要。你需要理解变量的声明、数据类型的使用、常见的运算符（如算术运算符、关系运算符等）以及基本的输入输出函数（如`printf`和`sclass="tags" href="/C.html" title=c>canf`）。这些是任何程序的构建模块࿰class="tags" href="/C.html" title=c>c;也是深入学习其他高级特性（如指针和内存管理）的基础。其次࿰class="tags" href="/C.html" title=c>c;学习**指针**是C语言中的关键环节。指针是C语言强大功能的核心࿰class="tags" href="/C.html" title=c>c;它直接与内存操作相关。你需要理解指针的基本概念࿰class="tags" href="/C.html" title=c>c;如指针变量、指针与数组的关系、指针运算等。尤其是在处理动态内存分配、数组和字符串时࿰class="tags" href="/C.html" title=c>c;指针能够极大提升程序的性能和灵活性。通过动手实现一些指针相关的练习࿰class="tags" href="/C.html" title=c>c;逐步消除对指针的恐惧感。另外࿰class="tags" href="/C.html" title=c>c;实际编程经验对于加深理解至关重要。通过编写简单的程序（例如`计算器`、`猜数字游戏`、`排序算法`等）࿰class="tags" href="/C.html" title=c>c;你可以巩固所学的理论知识。随着技能的提升࿰class="tags" href="/C.html" title=c>c;尝试实现更复杂的功能࿰class="tags" href="/C.html" title=c>c;甚至学习一些经典的数据结构与算法࿰class="tags" href="/C.html" title=c>c;如链表、栈、队列等。解决实际问题会帮助你更好地理解C语言的各种特性。阅读经典书籍如《C程序设计语言》（K&R）是学习C语言的好方法。这本书不仅详细讲解了C语言的基本语法࿰class="tags" href="/C.html" title=c>c;还介绍了C语言的内存管理和底层实现࿰class="tags" href="/C.html" title=c>c;适合初学者和有经验的程序员。最后࿰class="tags" href="/C.html" title=c>c;学习C语言需要保持**耐心**和**持之以恒**的态度。它可能比其他高级编程语言更加底层、难度更高࿰class="tags" href="/C.html" title=c>c;但正是这种深入底层的学习使得你能够更好地理解计算机的运行机制࿰class="tags" href="/C.html" title=c>c;从而成为一名更出色的程序员阅读经典书籍如《C程序设计语言》（K&R）是学习C语言的好方法。这本书不仅详细讲解了C语言的基本语法࿰class="tags" href="/C.html" title=c>c;还介绍了C语言的内存管理和底层实现࿰class="tags" href="/C.html" title=c>c;适合初学者和有经验的程序员。
class="tags" href="/C.html" title=c>code>