func as value

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package main

import (
	"fmt"
)

type Encipher func(plaintext string) string

func main() {
	p := "123"
	s := GenEncryptionFunc(Test)
	fmt.Println(s(p))
}

func GenEncryptionFunc(encrypt Encipher) func(string) (ciphertext string) {
	return func(plaintext string) string {
		return fmt.Sprintf("%s", encrypt(plaintext))
	}
}

func Test(s string) string {
	return s + "321"
}

func as value

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原文地址：http://my.oschina.net/meilihao/blog/359422