本文共 739 字，大约阅读时间需要 2 分钟。

int my_system(const char * cmd){    FILE * fp;    int res = 0;    char buf[1024] = {0};    if (cmd == NULL)    {        printf("my_system cmd is NULL!\n");        return -1;    }    if ((fp = popen(cmd, "r") ) == NULL)    {        perror("popen\n");        printf("popen error: %s/n", strerror(errno));        return -1;    }    else    {        while(fgets(buf, sizeof(buf), fp))        {            printf("%s", buf);        }        if ( (res = pclose(fp)) == -1)        {            printf("close popen file pointer fp error!\n");            return res;        }        else if (res == 0)        {            return res;        }        else        {            printf("pclose res is :%d\n", res);            return res;        }    }}

转载地址：http://czmai.baihongyu.com/