Go - Switch statement

Hello everyone! Comeback with me, Indomieboy~
Today, I will explain a little bit about Switch on Golang.

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A switch statement allows a variable to be tested for equality against a list of values. Each value is called a case, and the variable being switched on is checked for each switch case.

In Go programming, switch are of two types:

• Expression Switch (I will use this)
• Type Switch

Expression Switch

 The syntax for a Expression Switch statement in Go programming language is as follows:

switch(boolean-expression or integral type){
    case boolean-expression or integral type  :
       statement(s);      
    case boolean-expression or integral type  :
       statement(s); 
    /* you can have any number of case statements */
    default : /* Optional */
       statement(s);
}

Flow Diagram:

(image source: google)

Example:

package main

import "fmt"

func main() {
   /* local variable definition */
   var rank string = "2"
   var marks int = 90

   switch marks {
      case 90: rank = "1"
      case 80: rank = "2"
      case 50,60,70 : rank = "3"
      default: rank = "4"  
   }

   switch {
      case rank == "1" :
         fmt.Printf("WOW! You are a champion!\n" )     
      case rank == "2", rank == "3" :
         fmt.Printf("Well done\n" )      
      case rank == "4" :
         fmt.Printf("Try again\n" )      
      case rank == "5":
         fmt.Printf("Sorry you're loser\n" )
      default:
         fmt.Printf("Invalid rank\n" );
   }
   fmt.Printf("Your rank is  %s\n", rank );      
}

 And this the result:

(image source: my screenshot)

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Sorry if my grammar full of mistakes

#CMIIW

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Big thank's for Google & many blogger