closures _ golang

Go supports anonymous functions, which can form closures. Anonymous functions are useful when you want to define a function inline without having to name it

package main

import (
    "fmt"
)

func intSeq() func() int {
    i := 0
    return func() int {
        i += 1
        return i
    }
}

func main() {

    nextInt := intSeq()

    fmt.Println(nextInt())
    fmt.Println(nextInt())
    fmt.Println(nextInt())

    nextInts := intSeq()
    fmt.Println(nextInts())
}

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总结 :

　　1 : 匿名函数内部的值不是暴露在外面的....