将值发送到另一个函数 golang

Question

我做了一个有 4 个房间的随机房间程序。我正在尝试获取每个房间的属性并将它们传递给其他功能。每个房间里都有一个人，有一个名字和一个年龄属性。我正在尝试传递这些属性来测试 if 语句以发出额外的响应。如何传递这些值？

//the random maze room game

package main

//All imports can be combined into ()

import ("fmt"

        //Import needed for random operation

        "math/rand"

        //Import requied to call upon current time 

        "time"

)

type Person struct {

    Name string

    Age int

}

func main(){

    // These two lines are designed to reset the random Seed every time the program is run 

    // Unless the randomizer is seeded, Golang 1.6 is pseudo-random, 

    // always defaulting to Seed(1) 

    s1 := rand.NewSource(time.Now().UnixNano())

    r1 := rand.New(s1)

    switch r1.Intn(4){

    case 0:

        westRoom()

    case 1:

        eastRoom()

    case 2:

        northRoom()

    case 3:

        southRoom()

    default:

        lostRoom()

    }

    p := Person{}

    p.Name = Avatarname

    p.Age = Avatarage

    avatar(&p)

    appearance(&p)  

}

func westRoom(){

    fmt.Println("You find yourself in a room with three walls, and a door behind you.")

    fmt.Println("The opposite wall is a window, overlooking the sea")

    Avatarname := "Bill"

    Avatarage := 25

    return

}

func eastRoom(){

    fmt.Println("You find yourself in a room with a door on the walls to your left, right, and behind you")

    fmt.Println("on the wall across from you is a painting of a mountain scene")

    Avatarname := "Mary"

    Avatarage := 33

    return

}

func northRoom(){

    fmt.Println("You find yourself in a room with a door on the wall behind you")

    fmt.Println("You see several statues of people standing around the room")

    Avatarname := "Joe"

    Avatarage := 58

    return

}

func southRoom(){

    fmt.Println("You find yourself in a room with a door on the wall in front and behind you")

    Avatarname := "Abagail"

    Avatarage := 67

    return

}

func lostRoom(){

    fmt.Println("You are unable to find a room in a maze filled only with rooms")

    fmt.Println("It's almost like the programmer didn't know what he was doing")

}

Answer 1

一种方法是更改房间函数以返回Person结构或结构的属性Person。在此处查看实时代码：The Go Playground例如，func northRoom() *Person{  fmt.Println("You find yourself in a room with a door on the wall behind you")  fmt.Println("You see several statues of people standing around the room")  return &Person{"Joe", 58}}switch现在，您的语句中的函数调用可以期望Person返回一个结构。var p *Personswitch r1.Intn(4){case 0:    p = westRoom()case 1:    p = eastRoom()case 2:    p = northRoom()case 3:    p = southRoom()default:    p = lostRoom()}avatar(p)appearance(p) 请注意，您需要更改avatar()和appearance()函数的签名以接受*Person参数。

Answer 2

为什么不让您的房间功能返回 a Person？例子：func main() {    // These two lines are designed to reset the random Seed every time the program is run    // Unless the randomizer is seeded, Golang 1.6 is pseudo-random,    // always defaulting to Seed(1)    s1 := rand.NewSource(time.Now().UnixNano())    r1 := rand.New(s1)    var p Person    switch r1.Intn(4) {    case 0:        p = westRoom()    case 1:        p = eastRoom()    case 2:        p = northRoom()    case 3:        p = southRoom()    default:        lostRoom()    }    p.printAvatar()    p.printAppeareance()}func westRoom() Person {    fmt.Println("You find yourself in a room with three walls, and a door behind you.")    fmt.Println("The opposite wall is a window, overlooking the sea")    return Person{        Name: "Bill",        Age:  25,    }}https://play.golang.org/p/9_PuPsRdXg