#include<stdio.h>
#include<string.h>
int main()
{
    int i=0;
    int n;
    char a[300];
    scanf("%d",&n);
    while(n--)
    {
    scanf("%s",a);
    while(a[i]!='\0')
    {
        if('a'<=a[i]&&a[i]<='y'||'A'<=a[i]&&a[i]<='Y')
            a[i]++;
        else
            a[i]=a[i]-25;
        i++;
    }
   printf("%s\n",a);                                                                                                                                                                                         
    }
    return 0;
}
为什么只能输出字符串第一个空格前的，后面的输不出来。求帮助。先谢谢了！