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 持有 10,变量 B 持有 20,则 −
例运算符 | 描述 | 示例 |
---|---|---|
== | 检查两个操作数的值是否相等;如果是,则条件变为 true。 | (A == B) is not true. |
!= | 检查两个操作数的值是否相等;如果值不相等,则条件变为 true。 | (A != B) is true. |
> | 检查左操作数的值是否大于右操作数的值;如果是,则条件变为 true。 | (A > B) is not true. |
< | 检查左操作数的值是否小于右操作数的值;如果是,则条件变为 true。 | (A < B) is true. |
>= | 检查左操作数的值是否大于或等于右操作数的值;如果是,则条件变为 true。 | (A >= B) is not true. |
<= | 检查左操作数的值是否小于或等于右操作数的值;如果是,则条件变为 true。 | (A <= B) is true. |
请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" )
}
/* 让我们更改a和b的值 */
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
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