用指针数组表示命令行参数

╰+哭是因爲堅強的太久メ 2023-01-21 14:19 29阅读 0赞

1. 什么是命令行参数:

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjA0ODQ2Mw_size_16_color_FFFFFF_t_70][]

2. 命令行参数的作用及访问:

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjA0ODQ2Mw_size_16_color_FFFFFF_t_70 1][]

3. 演示命令行参数与main函数形参间的关系:

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjA0ODQ2Mw_size_16_color_FFFFFF_t_70 2][]

#include<stdio.h>
    int main(int argc, char* argv[])
    {
        int i;
        printf("The number of command line arguments is %d.\n", argc);
        printf("The program name is %s.\n", argv[0]);
        if(argc > 1)
        {
            printf("The other arguments are following:\n");
            for(i = 1; i < argc; i ++)
            {
                printf("%s\n", argv[i]);
            }
        }
        /* */
        return 0;
    }

![20210516200815736.png][]

4. 如何输入命令行参数:

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjA0ODQ2Mw_size_16_color_FFFFFF_t_70 3][]

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[20210516200815736.png]: /images/20221020/39e3f0d3f7134fd69bbff0ce131a7b57.png
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