【c/c++】如何调用【Window】cmd命令行命令并获取命令行的输出内容

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#include <stdio.h>#include <stdlib.h>#include <string.h>int _System(const char * cmd, char *pRetMsg, int msg_len){FILE * fp;char * p = NULL;int res = -1;if (cmd == NULL || pRetMsg == NULL || msg_len < 0){printf("Param Error!\n");return -1;}if ((fp = _popen(cmd, "r")) == NULL){printf("Popen Error!\n");return -2;}else{memset(pRetMsg, 0, msg_len);//get lastest result  while (fgets(pRetMsg, msg_len, fp) != NULL){printf("Msg:%s", pRetMsg); //print all info  }if ((res = _pclose(fp)) == -1){printf("close popenerror!\n");return -3;}pRetMsg[strlen(pRetMsg) - 1] = '\0';return 0;}}int main(){//test cmd  char *cmd = "python d:\\PythonProjects\\Demo1.py [1]";char a8Result[128] = { 0 };int ret = 0;ret = _System(cmd, a8Result, sizeof(a8Result));printf("ret = %d \na8Result = %s\nlength = %d \n", ret, a8Result, strlen(a8Result));getchar();return 0;}

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