南阳457

 1 #include<stdio.h>
 2 char s[105];
 3 int main()
 4 {
 5     int n;
 6     scanf("%d",&n);
 7     getchar();
 8     while(n--)
 9     {
10         gets(s);
11         for(int i=0; s[i]; ++i)
12             if(s[i]>='a' && s[i]<='z')
13                 putchar(s[i]-32);
14             else
15                 putchar(s[i]+32);
16         printf("\n");
17     }
18 }

 

转载于:https://www.cnblogs.com/qq188380780/p/6336826.html