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Go語言算術運算符

下表列出了所有Go語言支持的算術運算符。假設變量A=10和變量B=20則:

運算符 描述 示例
+ 兩個操作數相加 A + B = 30
- 第一個操作數減第二操作數 A - B = -10
* 兩個操作數相乘 A * B = 200
/ 通過去分子除以分母 B / A = 2
% 模運算和整數除法後的餘數 B % A = 0
++ 運算符遞增整數值增加一 A++ = 11
-- 運算符遞減整數值減一 A-- = 9

示例

試試下麵的例子就明白了所有的Go編程語言中可用的算術運算符:

package main

import "fmt"

func main() {

   var a int = 21
   var b int = 10
   var c int

   c = a + b
   fmt.Printf("Line 1 - Value of c is %d\n", c )
   c = a - b
   fmt.Printf("Line 2 - Value of c is %d\n", c )
   c = a * b
   fmt.Printf("Line 3 - Value of c is %d\n", c )
   c = a / b
   fmt.Printf("Line 4 - Value of c is %d\n", c )
   c = a % b
   fmt.Printf("Line 5 - Value of c is %d\n", c )
   a++
   fmt.Printf("Line 6 - Value of a is %d\n", a )
   a--
   fmt.Printf("Line 7 - Value of a is %d\n", a )
}

當編譯和執行上麵的程序,它會產生以下結果:

Line 1 - Value of c is 31
Line 2 - Value of c is 11
Line 3 - Value of c is 210
Line 4 - Value of c is 2
Line 5 - Value of c is 1
Line 6 - Value of a is 22
Line 7 - Value of a is 21