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#include <stdio.h>#include <errno.h>#include <string.h>/*@前提须知: 1:C 标准库的errno.h头文件定义了整数变量:errno 2:errno初始为int 0; 3:error == x --> x类型的错误 Value of errno: 0 Error opening file: No error Value of errno: 1 Error openin_#inc......
