[LeetCode] 157. Read N Characters Given Read4 用Read4來讀取N個字符
Given a file and assume that you can only read the file using a given method read4, implement a method to read n characters. Method read4 ...
原文：[leetcode]Read N Characters Given Read4
用read 實現readn... 至調用一次，感覺怎么搞都可以。。。估計這個題有II就是調用多次了。。。 感覺多次勇哥buffer存下多讀的那部分就好了。。。 ...
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ssize_t read(int fildes, void *buf, size_t nbyte); 返回值: > 0: 實際讀到的字節數 = 0: 讀完數據(讀文件, 管道, socket末尾-->對端關閉, 對端未關閉會一直等待) -1: 異常: errno ...