Go - 关系运算符


下表列出了Go语言支持的所有关系运算符。假设变量A为 10,变量B为 20,则 -

操作员 描述 例子
== 它检查两个操作数的值是否相等;如果是,则条件成立。 (A == B) 不正确。
!= 它检查两个操作数的值是否相等;如果值不相等,则条件成立。 (A != B) 为真。
> 检查左操作数的值是否大于右操作数的值;如果是,则条件成立。 (A > B) 不正确。
< 检查左操作数的值是否小于右操作数的值;如果是,则条件成立。 (A < B) 为真。
>= 它检查左操作数的值是否大于或等于右操作数的值;如果是,则条件成立。 (A >= B) 不正确。
<= 检查左操作数的值是否小于或等于右操作数的值;如果是,则条件成立。 (A <= B) 为真。

例子

尝试以下示例来了解 Go 编程语言中可用的所有关系运算符 -

package main

import "fmt"

func main() {
   var a int = 21
   var b int = 10

   if( a == b ) {
      fmt.Printf("Line 1 - a is equal to b\n" )
   } else {
      fmt.Printf("Line 1 - a is not equal to b\n" )
   }
   if ( a < b ) {
      fmt.Printf("Line 2 - a is less than b\n" )
   } else {
      fmt.Printf("Line 2 - a is not less than b\n" )
   } 
   if ( a > b ) {
      fmt.Printf("Line 3 - a is greater than b\n" )
   } else {
      fmt.Printf("Line 3 - a is not greater than b\n" )
   }
   
   /* Lets change value of a and b */
   a = 5
   b = 20
   if ( a <= b ) {
      fmt.Printf("Line 4 - a is either less than or equal to  b\n" )
   }
   if ( b >= a ) {
      fmt.Printf("Line 5 - b is either greater than  or equal to b\n" )
   }
}

当您编译并执行上述程序时,它会产生以下结果 -

Line 1 - a is not equal to b
Line 2 - a is not less than b
Line 3 - a is greater than b
Line 4 - a is either less than or equal to  b
Line 5 - b is either greater than  or equal to b
go_operators.htm