替换字符

此代码学习了，strlen函数，以及while循环语句

#include<windows.h>
#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<string.h>

//计算有序数组
int main()
{
    char arr1[] = "welcome to bite !!";
    char arr2[] = "##################";
    int sz = 0;
    //sz = sizeof(arr1) / sizeof(arr1[0]);
    int right = strlen(arr1) - 1;
    int left = 0;
while(left<=right)
       {
       if(left<right)
         arr2[left] = arr1[left];
         arr2[right] = arr1[right];
         printf("%s\n", arr2);
         Sleep(1000);
         left++;
         right--;
        }
        if (left > right)
        {
        printf("转换结束\n");
         }
    return 0;
}