数

43.go

package main

import "fmt"

func mynumber() map[string]func(int) int {
    sum := 0
    result := make(map[string]func(int)int)
    result["add"] = func(x int) int {
        sum += x
        return sum
    }
    result["sub"] = func(x int) int {
        sum -= x
        return sum
    }
    return result
}


func main() {
    number1 := mynumber()
    number2 := mynumber()
   
    fmt.Println(number1["add"](1))
    fmt.Println(number1["add"](1))
    fmt.Println(number1["add"](1))
    fmt.Println(number1["sub"](2))
    fmt.Println(number1["sub"](2))
    fmt.Println(number1["sub"](2))
    fmt.Println(number2["add"](10))
    fmt.Println(number2["add"](10))
    fmt.Println(number2["add"](10))
}