\u5b57\u7b26 字符转换（Unicode字符与中文的相互转化）

C#：

工具下载

示例：

private void button1_Click(object sender, EventArgs e)
{String value = textBox1.Text;if (value.Contains("\\u")) value = UnicodeConverter.ToChinese(value);          // Unicode字符转化为中文else value = UnicodeConverter.ToUnicode(textBox1.Text); // 中文转化为Unicode字符textBox1.Text = value;
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;namespace UnicodeStringTool
{/// <summary>/// 此类用于实现Unicode字符与中文字符的相互转换/// </summary>class UnicodeConverter{/// <summary>/// 将中文字符串转化为Unicode串/// </summary>public static String ToUnicode(String str){String tmp = "";foreach (char C in str){if (isChinese(C)) tmp += "\\u" + ToString(C, 16);   // 将中文字符转化为Unicode串else tmp += C;}return tmp;}/// <summary>/// 将Unicode串转化为中文字符串/// </summary>public static String ToChinese(String str){String tmp = str;Regex regex = new Regex("\\\\u[0-9a-fA-F]{4}", RegexOptions.IgnoreCase);MatchCollection collection = regex.Matches(tmp);foreach (Match match in collection){String hexStr = match.Value.Substring("\\u".Length); // 获取16进制串String C = ToChar(match.Value, 16).ToString();tmp = tmp.Replace(match.Value, C);}return tmp;}// 相关功能函数// -----------------------------------------------------------------// 判断字符C是否是中文字符public static bool isChinese(char C){// 中文字符范围return 0x4e00 <= C && C <= 0x9fbb;}// 将数值num转化为radix进制表示的字符串, 2 <= radix <= 36public static String ToString(int num, int radix = 10){String Str = "";while (num > 0){int remainder = num % radix;    // 取余数num = num / radix;              // 取商Str = ToChar(remainder) + Str;  // 将各位余数，依次转化为对应进制字符}return Str;}// 将数值n转化为字符，0 <= n <= 35，依次转化为字符0-9a-z;// 最大可表示36进制数public static char ToChar(int n){n = n % 36;if (n < 10) n += '0';else n += 'a' - 10;return (char)n;}// 将字符0-9a-z依次转化为数值0-35public static int ToInt(char C){if (C > '9') return C - 'a' + 10;else return C - '0';}// 将字符串radix进制的串str转化为字符public static char ToChar(String str, int radix){int n = 0;foreach (char C in str){n = n * radix + ToInt(C);}return (char)n;}// -----------------------------------------------------------------}
}

java：

\u55\u5b57\u7b26
U字符

/** ChineseCharacterTransform.java: ----- 2016-9-20 下午3:49:51 wangzhongyuan */
public class ChineseCharacterTransform
{public static void main(String[] args){String str = "U字符";String Ustr = to_U_Str(str);System.out.println(Ustr);				// 转化为U字符Ustr = "\\u55\\u5b57\\u7b26";System.out.println(UStr_2_Str(Ustr));	// 转化为表示的文本}/* 将字符串转化为\\u形式的字符串，如： "U字符" -> "\\u55\\u5b57\\u7b26" ;U字符为字符串中每个字符的16进制信息 */public static String to_U_Str(String str){String tmp = "";for (char C : str.toCharArray())// 获取所有字符tmp += "\\u" + Integer.toHexString(C);		// 将每个字符的的值，转化为16进制字符串return tmp;}/* 将U字符转化为其表示的字符串, 如： "\\u55\\u5b57\\u7b26" -> "U字符" ;按\\u分割，依次转化为对应字符*/public static String UStr_2_Str(String Ustr0){String Ustr = Ustr0;int S = 0, E = 0;String C = "", Value = "";while (Ustr.contains("\\u")){S = Ustr.indexOf("\\u") + "\\u".length();	E = Ustr.indexOf("\\u", S);if (E == -1) E = Ustr.length();if (E > S){C = Ustr.substring(S, E);if (C.length() > 4) C = C.substring(0, 4);Value = (char) Integer.parseInt(C, 16) + "";Ustr = Ustr.replace("\\u" + C, Value);}}return Ustr;}
}

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