Question

我做了一个有4个房间的随机房间计划。我试图获取每个房间的属性并将它们传递给其他功能。每个房间都有一个姓名和年龄属性的人。我试图传递这些属性来测试if语句以产生额外的响应。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")
}

func avatar(p.Name, p.Age){
    if p.Name == "Bill" || "Joe" {
        fmt.Println("You see a man standing in the middle of the room")
    }   else {
        fmt.Println("You see a woman standing in the middle of the room")
    }
}

func appeareance(p.Name, p.Age) {
    if p.Age > 50 {
        fmt.Println("They look old")
    }   else {
        fmt.Println("They look young")
    }
}

Answer 1

为什么房间功能没有返回Person？例如：

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

Answer 2

执行此操作的一种方法是更改房间功能，以返回Person结构或Person结构的属性。

点击此处的实时代码： 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}
}

现在，switch语句中的函数调用可能会返回Person结构。

var p *Person
switch 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()功能的签名才能接受*Person参数。

将值发送到另一个函数golang

2 个答案: