比较字母大小

 1 #include <stdio.h> 
 2 
 3 int main(){
 4     int T;
 5     char a;
 6     char b;
 7     char compare;
 8     
 9     scanf("%d",&T);
10     getchar();
11     
12     while(T--){
13         scanf("%c %c",&a,&b);
14         getchar();
15         
16         if(a==b)
17             compare=‘=‘;
18             
19         else if(a>b)
20             compare=‘<‘;
21             
22         else
23             compare=‘>‘;
24             
25         printf("%c%c%c\n",a,compare,b);
26     }
27     return 0;
28 }