Go Switch语句

package main



import "fmt"



func main() {

   /* local variable definition */

   var grade string = "B"

   var marks int = 90



   switch marks {

      case 90: grade = "A"

      case 80: grade = "B"

      case 50,60,70 : grade = "C"

      default: grade = "D"  

   }

   switch {

      case grade == "A" :

         fmt.Printf("Excellent!\n" )     

      case grade == "B", grade == "C" :

         fmt.Printf("Well done\n" )      

      case grade == "D" :

         fmt.Printf("You passed\n" )      

      case grade == "F":

         fmt.Printf("Better try again\n" )

      default:

         fmt.Printf("Invalid grade\n" );

   }

   fmt.Printf("Your grade is  %s\n", grade );      

}