我的第21个代码

实现字符替换并打印

#define  _CRT_SECURE_NO_WARNINGS 1#include<stdio.h>#include<string.h>#include<windows.h>#include<stdlib.h>int main(){    char arr1[] = { "welcome to c world, keep runing !!!"};    char arr2[] = { "***********************************" };    int left = 0;    int right = strlen(arr1)-1;//strlen()函数是用来计算字符串长度的    while (left <= right)    {        arr2[left] = arr1[left];        arr2[right] = arr1[right];        printf("%s\n", arr2);         Sleep(1000);//暂停一秒，1000毫秒等于一秒        system("cls");//执行系统命令的一个函数-cls-清空屏幕        left++;        right--;    }    printf("%s\n", arr2);    return 0;}