请问为什么输出总是重复else的内容？是找字母的游戏代码

Question

请求大神指点！非常感谢！

代码如下:

#include<stdio.h>
#include<stdlib.h>
#include<time.h>

int main(void){

    char alphabet;
    char c;

    srand(time(NULL));
    c=rand()%26;
    c=c+'A';

    printf("%c",c);

    printf("I have selected a character between A and Z\nTry to guess the character selecter by me!\nWhat is your guess?\n");

    int i;

    for(i=0;i<=100;i++){

        scanf("%c",&alphabet);

        if(c==alphabet){
            printf("Great! Your guess is right!\n");
            }

        else if(c<alphabet){
               printf("Way behind! Please try again.\n");}    
        else{
               printf("Way ahead! Please try again.\n");}
            

    }
        
    
    return 0;
}
 

结果如下：

 

Answer 1

因为scanf也会读取换行符，所以当你输入a+回车的时候，等于会运行两次循环，所以需要先判断一下alphabet是不是'\n'，是的话跳过本次循环

for(i=0;i<=100;i++){
        scanf("%c",&alphabet);
        if (alphabet == '\n') {
            continue;
        }

        if(c==alphabet){
            printf("Great! Your guess is right!\n");
        }else if(c<alphabet){
            printf("Way behind! Please try again.\n");
        }
        else{
            printf("Way ahead! Please try again.\n");
        }
}