列出输入目录的所有文件

#include <dirent.h>
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char* argv[]){
        DIR* dir;
        if(argc < 2){
                fprintf(stderr, "参数太少了!\n");
                exit(1);
        }
        if((dir = opendir(argv[1])) == NULL){
                fprintf(stderr, "打开目录%s失败!\n", argv[1]);
                exit(1);
        }
        dirent* dp;
        while((dp = readdir(dir)) != NULL){
                fprintf(stdout, "%s %d\n", dp->d_name, dp->d_ino);
        }
        closedir(dir);
        exit(0);
}