int mian(int argc,char *argv[])解析
- 输入一下测试代码:
#include<stdio.h>
int main(int argc,char *argv[])
{
printf("参数总值:%d\n",argc);
printf("值0:%s\n",argv[0]);
printf("值1:%s\n",argv[1]);
printf("值2:%s\n",argv[2]);
printf("值3:%s\n",argv[3]);
return 0;
}
- 打印结果:
root@ubuntu:/home/c_test# ./mian
参数总值:1
值0:./mian
值1:(null)
值2:XDG_VTNR=7
值3:XDG_SESSION_ID=c2
root@ubuntu:/home/c_test# ./mian pp oo cc
参数总值:4
值0:./mian
值1:pp
值2:oo
值3:cc
int mian(int argc,char *argv[])用途
1.argc:统计主函数的参数个数
2.argv[ ] :保存具体的参数值
还可以参考本帖: https://blog.csdn.net/Eastmount/article/details/20413773