python操作文件

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pcharm 注释的快捷键 ctrl + /
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多次read,之后，后面read，readlines会根据上面read位置开始读取。

相当于高级语言中的 using功能

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文件写入

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注意：
close 方法内置了flush方法的。

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淘宝、天猫、1688图片识别API接口。

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N! Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 30093 Accepted Submission(s): 8264 Problem Description Given an integer N(0 ≤ N ≤ 10000), your task is to calculate N! Input One N in one li…

HDU1243-反恐训练营（最长公共子序列变形）

反恐训练营 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 4325 Accepted Submission(s): 1056…

hdu N!

HDU N! N! Time Limit : 10000/5000ms (Java/Other) Memory Limit : 65536/32768K (Java/Other) Total Submission(s) : 71 Accepted Submission(s) : 20 Font: Times New Roman | Verdana | Georgia Font Size: ← → Problem Description Given an integer N(0 ≤ N ≤…

N!

Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others) Total Submission(s): 83308 Accepted Submission(s): 24528 Problem Description Given an integer N(0 ≤ N ≤ 10000), your task is to calculate N! Input One N in one lin…

杭电--N!（大数）

N! Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 64556 Accepted Submission(s): 18431 Problem Description Given an integer N(0 ≤ N ≤ 10000), your task is to calculate N! Input One N in one li…