C语言 中的 nested switch 语句函数

nested switch - 语法

嵌套switch语句的语法如下所示:-

switch(ch1) {

   case 'A': 
      printf("This A is part of outer switch" );
		
      switch(ch2) {
         case 'A':
            printf("This A is part of inner switch" );
            break;
         case 'B': /* case code */
      }
	  
      break;
   case 'B': /* case code */
}

nested switch - 示例

#include <stdio.h>
 
int main () {

   /* 局部变量定义 */
   int a=100;
   int b=200;
 
   switch(a) {
   
      case 100: 
         printf("This is part of outer switch\n", a );
      
         switch(b) {
            case 200:
               printf("This is part of inner switch\n", a );
         }
   }
   
   printf("Exact value of a is : %d\n", a );
   printf("Exact value of b is : %d\n", b );
 
   return 0;
}

编译并执行上述代码时，将生成以下结果-

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This is part of outer switch
This is part of inner switch
Exact value of a is : 100
Exact value of b is : 200