golang map简单应用

package main

import "fmt"

//如果用户名存在就将密码改为888888，不存在就新增该用户信息
func main() {

	user := make(map[string]map[string]string, 10)
	user["smith"] = make(map[string]string, 2)
	user["smith"]["password"] = "999999"
	user["smith"]["nickname"] = "史密斯"
	modifyUser(user, "tom")
	modifyUser(user, "mary")
	modifyUser(user, "smith")
	fmt.Println(user)
}
func modifyUser(user map[string]map[string]string, name string) {

	if user[name] != nil { //如果有该用户则只是修改密码
		user[name]["password"] = "888888"
	} else { //没有该用户则新添该用户
		user[name] = make(map[string]string, 2)
		user[name]["password"] = "888888"
		user[name]["nickname"] = name
	}
}