# C 语言标准库函数 system

/*********************************************
 * @brief 执行命令
 * @param command 要执行的命令
 * @return 命令的返回值
 ********************************************/
int system(const char* command);

#include <stdio.h> 
#include <stdlib.h> 

int main(void)
{
    if (system(NULL))
    {
        printf("宿主环境具有命令处理器\n");
        system("echo Hello World");
        system("gcc --version");
    }
    else
    {
        printf("宿主环境没有命令处理器\n");
    }
    return 0;
}

宿主环境具有命令处理器
Hello World
gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
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