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/**********************
Name:a.out
Author:不学则死
Date:2012/9/20
CopyRight:转载注明出处
***********************/
/*
argc是整个命令行参数的个数;
argv[0] 指向程序运行的全路径名;
argv[1] 指向执行程序名后的第一个字符串;
argv[2] 指向执行程序名后的第二个字符串;
...
argv[argc]为NULL。
*/
#include <stdio.h>
int main(int argc, char** argv)
{
int i = 0;
printf("argc=%d\n",argc);
for(i=0; i<=argc; i++)
{
printf("argv[%d]=%s\n", i, argv[i] );
}
return 0;
}
/*
root@ubuntu:~/eclipseworkspace# ./a.out
argc=1
argv[0]=./a.out
argv[1]=(null)
root@ubuntu:~/eclipseworkspace# ./a.out a
argc=2
argv[0]=./a.out
argv[1]=a
argv[2]=(null)
root@ubuntu:~/eclipseworkspace# ./a.out -a
argc=2
argv[0]=./a.out
argv[1]=-a
argv[2]=(null)
root@ubuntu:~/eclipseworkspace# ./a.out -ab
argc=2
argv[0]=./a.out
argv[1]=-ab
argv[2]=(null)
root@ubuntu:~/eclipseworkspace# ./a.out -a b
argc=3
argv[0]=./a.out
argv[1]=-a
argv[2]=b
argv[3]=(null)
root@ubuntu:~/eclipseworkspace# ./a.out -a -b
argc=3
argv[0]=./a.out
argv[1]=-a
argv[2]=-b
argv[3]=(null)
*/ |