使用switch结构从菜单评估用户的响应-C/C++实例代码

switch 不使用 break 语句：#include stdio.h int main(){ int iResponse = 0; printf(\\n1\\tSports\\n);

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switch 不使用 break 语句：

#include <stdio.h> 
int main()
{ 
   int iResponse = 0; 

   printf("\n1\tSports\n"); 
   printf("2\tGeography\n"); 
   printf("3\tMusic\n"); 
   printf("4\tWorld Events\n"); 
   printf("\nPlease select a category (1-4): "); 
   scanf("%d", &iResponse); 

   switch (iResponse) { 
      case 1: 
         printf("\nYou selected sports questions\n"); 
      case 2: 
         printf("You selected geography questions\n"); 
      case 3: 
         printf("You selected music questions\n"); 
      case 4: 
         printf("You selected world event questions\n"); 
   }  //end switch 
}

switch 使用 break 语句：

#include <stdio.h> 
int main()
{ 
   int iResponse = 0; 

   printf("\n1\tSports\n"); 
   printf("2\tGeography\n"); 
   printf("3\tMusic\n"); 
   printf("4\tWorld Events\n"); 
   printf("\nPlease select a category (1-4): "); 
   scanf("%d", &iResponse); 

   switch (iResponse) { 
      case 1: 
         printf("\nYou selected sports questions\n"); 
         break;
      case 2: 
         printf("You selected geography questions\n"); 
         break;
      case 3: 
         printf("You selected music questions\n"); 
         break;
      case 4: 
         printf("You selected world event questions\n"); 
   }  //end switch 
}