字母向中间移动

#include <stdio.h>
#include <string.h>
#include <windows.h>
#include <stdlib.h>
int main()
{
char arr1[] = "welcome to bit!!!!";
char arr2[] = "##################";

int left = 0;
//两种方法
//int right =`sizeof(arr1)/sizeof(arr1[0])-2;
int right = strlen(arr1) - 1;

while (left <= right)
{
    arr2[left] = arr1[left];
    arr2[right] = arr1[right];
    printf("%s\n", arr2);
    //休息一秒
    Sleep(1000);
    system("cls");//执行系统命令的一个函数 清空屏幕
    left++;
    right--;
}
    printf("%s\n", arr2);
return 0;

}