Go - 巢狀 if 語句



在 Go 程式設計中,巢狀 if-else 語句始終是合法的,這意味著你可以在一個 if 或 else if 語句中使用另一個 if 或 else if 語句。

語法

巢狀 if 語句的語法如下 −

if( boolean_expression 1) {
   /* Executes when the boolean expression 1 is true */
   if(boolean_expression 2) {
      /* Executes when the boolean expression 2 is true */
   }
}

你可以按照巢狀 if 語句的方式,類似地巢狀 else if...else

示例

package main

import "fmt"

func main() {
   /* local variable definition */
   var a int = 100
   var b int = 200
 
   /* check the boolean condition */
   if( a == 100 ) {
      /* if condition is true then check the following */
      if( b == 200 )  {
         /* if condition is true then print the following */
         fmt.Printf("Value of a is 100 and b is 200\n" );
      }
   }
   fmt.Printf("Exact value of a is : %d\n", a );
   fmt.Printf("Exact value of b is : %d\n", b );
}

當以上程式碼編譯並執行時,將產生以下結果 −

Value of a is 100 and b is 200
Exact value of a is : 100
Exact value of b is : 200
go_decision_making.htm
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