C 字符不能正确比较

这是我到目前为止写的：

int main(void) {
   int playerJerseys[5];
   int playerRatings[5];

   printf("Enter player 1's jersey number:\n");
   scanf("%d",&playerJerseys[0]);
   printf("Enter player 1's rating:\n\n");
   scanf("%d",&playerRatings[0]);
   printf("Enter player 2's jersey number:\n");
   scanf("%d",&playerJerseys[1]);
   printf("Enter player 2's rating:\n\n");
   scanf("%d",&playerRatings[1]);
   printf("Enter player 3's jersey number:\n");
   scanf("%d",&playerJerseys[2]);
   printf("Enter player 3's rating:\n\n");
   scanf("%d",&playerRatings[2]);
   printf("Enter player 4's jersey number:\n");
   scanf("%d",&playerJerseys[3]);
   printf("Enter player 4's rating:\n\n");
   scanf("%d",&playerRatings[3]);
   printf("Enter player 5's jersey number:\n");
   scanf("%d",&playerJerseys[4]);
   printf("Enter player 5's rating:\n\n");
   scanf("%d",&playerRatings[4]);

   printf("ROSTER\n");
   printf("Player 1 -- Jersey number: %d, Rating: %d\n",playerJerseys[0],playerRatings[0]);
   printf("Player 2 -- Jersey number: %d, Rating: %d\n",playerJerseys[1],playerRatings[1]);
   printf("Player 3 -- Jersey number: %d, Rating: %d\n",playerJerseys[2],playerRatings[2]);
   printf("Player 4 -- Jersey number: %d, Rating: %d\n",playerJerseys[3],playerRatings[3]);
   printf("Player 5 -- Jersey number: %d, Rating: %d\n\n",playerJerseys[4],playerRatings[4]);

   char selection;
   printf("MENU\n");
   printf("u - Update player rating\n");
   printf("a - Output players above a rating\n");
   printf("r - Replace player\n");
   printf("o - Output roster\n");
   printf("q - Quit\n\n");
   printf("Choose an option:\n");
   scanf("%c",&selection);

   if(selection == 'q'){
      return 0;  
   }
   else if(selection == 'u'){
      int userJersey;
      int userRating;
      printf("Enter a jersey number:\n");
      scanf("%d",&userJersey);
      for(int i = 0; i < 5; ++i){
         if(playerJerseys[i] == userJersey){
            printf("Enter a new rating for player:\n");
            scanf("%d",&userRating);
            playerRatings[i] = userRating; 
         }
      }
   }
   else if(selection == 'o'){
      printf("ROSTER\n");
      printf("Player 1 -- Jersey number: %d, Rating: %d\n",playerJerseys[0],playerRatings[0]);
      printf("Player 2 -- Jersey number: %d, Rating: %d\n",playerJerseys[1],playerRatings[1]);
      printf("Player 3 -- Jersey number: %d, Rating: %d\n",playerJerseys[2],playerRatings[2]);
      printf("Player 4 -- Jersey number: %d, Rating: %d\n",playerJerseys[3],playerRatings[3]);
      printf("Player 5 -- Jersey number: %d, Rating: %d\n\n",playerJerseys[4],playerRatings[4]);
   }
   return 0;
}

这是输出：

Player 1 -- Jersey number: 84, Rating: 7
Player 2 -- Jersey number: 23, Rating: 4
Player 3 -- Jersey number: 4, Rating: 5
Player 4 -- Jersey number: 30, Rating: 2
Player 5 -- Jersey number: 66, Rating: 9

MENU
u - Update player rating
a - Output players above a rating
r - Replace player
o - Output roster
q - Quit

Choose an option:

所需输出为：

ROSTER
Player 1 -- Jersey number: 84, Rating: 7
Player 2 -- Jersey number: 23, Rating: 4
Player 3 -- Jersey number: 4, Rating: 6
Player 4 -- Jersey number: 30, Rating: 2
Player 5 -- Jersey number: 66, Rating: 9

MENU
u - Update player rating
a - Output players above a rating
r - Replace player
o - Output roster
q - Quit

Choose an option:

---

当u被提供作为输入时，后续的数字应该会改变其中一个玩家的等级，但对我来说它不起作用。我不确定我是否只是不知道如何比较字符？或者我的if语句，或者如果语句设置不正确？任何建议都将不胜感激。

尝试在%c之前留出空白，这样做很有效。 像

---

scanf（“%c”，选择（&c））请尝试重新表述您的问题，以包含最低限度的工作示例。那里有很多不必要的代码。试着把它归结为字符比较。我看不出输出有什么不同，对吗？您是否在调试器中逐行运行代码，检查变量并查看发生了什么？更新播放评级后，程序退出。我看不到“菜单”上有任何循环。“这是输出”的显示方式？OT:调用任何
scanf（）
函数族时，始终检查返回值（而不是参数值），以确保操作成功：关于：
scanf（“%c”，&selection）
您在哪里允许吸收/跳过“\n”建议：
如果（scanf（“%c”，&selection）！=1）{fprintf（stderr，“无法输入菜单选项”）；
请注意
%c
前面的空格，以便使用任何“空白”
ROSTER
Player 1 -- Jersey number: 84, Rating: 7
Player 2 -- Jersey number: 23, Rating: 4
Player 3 -- Jersey number: 4, Rating: 6
Player 4 -- Jersey number: 30, Rating: 2
Player 5 -- Jersey number: 66, Rating: 9

MENU
u - Update player rating
a - Output players above a rating
r - Replace player
o - Output roster
q - Quit

Choose an option: