[编程入门]自定义函数之字符串拷贝

解题思路:

注意事项:

参考代码:

#include<stdio.h>

int main()

{

    char arr1[20] = { '0' };

    char arr2[20] = { '0' };

    int i = 0, n = 0, m = 0;

    scanf("%d\n", &n);

    for (i = 0; i < n; i++)

    {

        scanf("%c", &arr1[i]);

    }

    arr1[n] = '\0';

    scanf("%d", &m);

    //printf("m = %d\n", m);//(仅做测试用)

    //puts(arr1);//(仅做测试用)

    int j = m - 1;

    for (i = 0; i < n - m + 1; i++)

    {

        arr2[i] = arr1[j];

        j++;

    }

    arr2[n - m + 1] = '\0';

    puts(arr2);

    return 0;

}

注意scanf格式字符串不同会吃掉空白字符