Golang 程序创建一个可以执行基本计算器操作的类
go programmingserver side programmingprogramming更新于 2025/4/22 4:22:17
要创建一个可以执行基本计算器操作的类，我们可以采取以下步骤
- 我们可以定义一个包含两个数字 a 和 b 的 Calculator 类。
- 定义一个成员方法来计算两个数字的加法。
- 定义一个成员方法来计算两个数字的乘法。
- 定义一个成员方法来计算两个数字的除法。
- 定义一个成员方法来计算两个数字的减法。
- 在 main 方法中，声明两个变量 a 和 b。
- 获取 Calculator 的实例。
- 初始化一个选择变量，基于该数学可以执行的操作。
示例
package main
import (
"fmt"
)
type Calculator struct {
a int
b int
}
func (c *Calculator)Add(){
fmt.Println("Addition of two numbers: ", c.a + c.b)
}
func (c *Calculator)Mul(){
fmt.Println("Multiplication of two numbers: ", c.a * c.b)
}
func (c *Calculator)Div(){
fmt.Println("Division of two numbers: ", c.a / c.b)
}
func (c *Calculator)Sub(){
fmt.Println("Subtraction of two numbers: ", c.a - c.b)
}
func main(){
var a, b int
fmt.Print("Enter the first number: ")
fmt.Scanf("%d", &a)
fmt.Print("Enter the second number: ")
fmt.Scanf("%d", &b)
cal := Calculator{
a: a,
b: b,
}
c:=1
for c>=1 {
fmt.Println("Enter 1 for Addition: ")
fmt.Println("Enter 2 for Multiplication: ")
fmt.Println("Enter 3 for Division: ")
fmt.Println("Enter 4 for Subtraction: ")
fmt.Print("Enter 5 for Exit: ")
fmt.Scanf("%d", &c)
switch c {
case 1:
cal.Add()
case 2:
cal.Mul()
case 3:
cal.Div()
case 4:
cal.Sub()
case 5:
c = 0
break
default:
fmt.Println("Enter valid number.")
}
}
}
输出
Enter the first number: 7 Enter the second number: 3 Enter 1 for Addition: Enter 2 for Multiplication: Enter 3 for Division: Enter 4 for Subtraction: Enter 5 for Exit: 1 Addition of two numbers: 10 Enter 1 for Addition: Enter 2 for Multiplication: Enter 3 for Division: Enter 4 for Subtraction: Enter 5 for Exit: 2 Multiplication of two numbers: 21 Enter 1 for Addition: Enter 2 for Multiplication: Enter 3 for Division: Enter 4 for Subtraction: Enter 5 for Exit: 3 Division of two numbers: 2 Enter 1 for Addition: Enter 2 for Multiplication: Enter 3 for Division: Enter 4 for Subtraction: Enter 5 for Exit: 4 Subtraction of two numbers: 4 Enter 1 for Addition: Enter 2 for Multiplication: Enter 3 for Division: Enter 4 for Subtraction: Enter 5 for Exit: 5
