C 语言 getcwd 用法 获取当前路径

#include<stdio.h>
#include<stdlib.h>
#include<unistd.h>
int main(void)
{
    char *path = NULL;
    path = getcwd(NULL,0);
    puts(path);
    free(path);
    return 0;
}

参考
https://blog.csdn.net/baidu_35085676/article/details/52002579