Int32.Parse, Convert.ToInt32,Int32.TryParse三者的区别 Int32. Parse (string) Int32.Parse (string str) method converts the string representation of a number to its 32-bit signed integer equivalent
int stat(const char *path, struct stat *buf); int lstat(const char *path, struct stat *buf); int fstat(int filedes, struct stat *buf); 聪明人一眼就能看出来fstat的第一个参数是和另外两个不一样的,对!fstat区别于另外两个系统调用的地方在于,fstat