在屏幕中显示出welcome to CHINA,并每次左右各显示一个字符

#define _CRT_SECURE_NO_WARNINGS 1 
//在屏幕中显示出welcome to CHINA,并每次左右各显示一个字符
#include<stdio.h>
#include<string.h>
int main()
{
    char arr1[] = "welcome to CHINA";
    char arr2[] = "################";
    int left = 0;
    int right = strlen(arr1) - 1;
    while (left < right)
    {
        arr2[left] = arr1[left];
        arr2[right] = arr1[right];
        printf("%s\n", arr2);
        left++; right--;
    }
    return 0;
}