话不多说，直接上代码：

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<windows.h>
int main()
{
char arr1[] = "I will always love you now and forever";
char arr2[] = "**************************************"; 
int left = 0;
int right = strlen(arr2) - 1;
while(left<=right)
{
arr2[left] = arr1[left];
arr2[right] = arr1[right];
left++;
right--;
printf("%s\n",arr2);
Sleep(1000);
system("cls");
}
printf("%s\n",arr2);
return 0;
}

//注意调用的函数的头文件，别记混了！！！