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2023-12-01

下表列出了Go语言支持的所有赋值运算符 -

操作者描述
=简单赋值运算符,将右侧操作数的值分配给左侧操作数C = A + B将A + B的值分配给C
+=添加AND赋值运算符,它将右操作数添加到左操作数并将结果赋给左操作数C + = A等于C = C + A.
-=减去AND赋值运算符,它从左操作数中减去右操作数,并将结果赋给左操作数C - = A相当于C = C - A.
*=乘以AND赋值运算符,它将右操作数与左操作数相乘,并将结果赋值给左操作数C * = A等于C = C * A.
/=除法AND赋值运算符,它将左操作数除以右操作数,并将结果赋值给左操作数C/= A相当于C = C/A.
%=模数AND赋值运算符,使用两个操作数获取模数,并将结果赋给左操作数C%= A等于C = C%A
<<=左移AND赋值运算符C << = 2与C = C << 2相同
>>=右移AND赋值运算符C >> = 2与C = C >> 2相同
&=按位AND赋值运算符C&= 2与C = C&2相同
^=按位异或和赋值运算符C ^ = 2与C = C ^ 2相同
|=按位包含OR和赋值运算符C | = 2与C = C |相同 2

例子 (Example)

尝试以下示例以了解Go编程语言中可用的所有赋值运算符 -

package main
import "fmt"
func main() {
   var a int = 21
   var c int
   c =  a
   fmt.Printf("Line 1 - =  Operator Example, Value of c = %d\n", c )
   c +=  a
   fmt.Printf("Line 2 - += Operator Example, Value of c = %d\n", c )
   c -=  a
   fmt.Printf("Line 3 - -= Operator Example, Value of c = %d\n", c )
   c *=  a
   fmt.Printf("Line 4 - *= Operator Example, Value of c = %d\n", c )
   c /=  a
   fmt.Printf("Line 5 - /= Operator Example, Value of c = %d\n", c )
   c  = 200; 
   c <<=  2
   fmt.Printf("Line 6 - <<= Operator Example, Value of c = %d\n", c )
   c >>=  2
   fmt.Printf("Line 7 - >>= Operator Example, Value of c = %d\n", c )
   c &=  2
   fmt.Printf("Line 8 - &= Operator Example, Value of c = %d\n", c )
   c ^=  2
   fmt.Printf("Line 9 - ^= Operator Example, Value of c = %d\n", c )
   c |=  2
   fmt.Printf("Line 10 - |= Operator Example, Value of c = %d\n", c )
}

编译并执行上述程序时,会产生以下结果 -

Line 1 - =  Operator Example, Value of c = 21
Line 2 - += Operator Example, Value of c = 42
Line 3 - -= Operator Example, Value of c = 21
Line 4 - *= Operator Example, Value of c = 441
Line 5 - /= Operator Example, Value of c = 21
Line 6 - <<= Operator Example, Value of c = 800
Line 7 - >>= Operator Example, Value of c = 200
Line 8 - &= Operator Example, Value of c = 0
Line 9 - ^= Operator Example, Value of c = 2
Line 10 - |= Operator Example, Value of c = 2