在 Kotlin 中调用子程序

Question

我似乎找不到任何关于子例程以及如何在 Kotlin 中调用它们的信息。我正在通过创建一个系统来练习，该系统接受用户的输入并显示提示用户的内容，如果他们的信息正确则说是，如果不正确则说否。然后要求他们输入 "reset" 进入子程序，直到他们输入 yes。

代码没有错误，但是当我进入 "reset" 阶段时，子例程从未被调用，程序只是挂起。它允许我输入其他内容，但随后就结束了程序。

下面是代码：

fun main(args: Array<String>) {
    println("Enter your name")
    val name = readLine()

    println("Enter your email")
    val email = readLine()

    println("Enter your location")
    val location = readLine()

    println("$name $location $email")
    println("Are you sure this is the correct information about you? Type yes or no.")
    val answer = readLine()

    if (answer == "yes") {
        println("Awesome. Details have been saved.")
        return
    } else if (answer == "no") {
        println("Type reset to retry")
        val reset = readLine()
        if (reset == "reset") {
            loop()
        }
    } else {
        println("Error has occurred")
    }
}

fun loop (){
    val answer = readLine()
    while(answer == "no"){
        println("Enter your name")
        val name = readLine()

        println("Enter your email")
        val email = readLine()

        println("Enter your location")
        val location = readLine()

        println("$name $location $email")
        println("Are you sure this is the correct information about you? Type yes or no.")
        if(answer != "yes"){
            println("Awesome. Details have been saved.")
            break
        }
    }
}

Answer 1

做 while 循环可以得到你想要的效果所以试试这个 -

fun loop (){
    do {
        println("Enter your name")
        val name = readLine()

        println("Enter your email")
        val email = readLine()

        println("Enter your location")
        val location = readLine()

        println("$name $location $email")
        println("Are you sure this is the correct information about you? Type yes or no.")
        val answer = readLine()

        if(answer == "yes"){
            println("Awesome. Details have been saved.")
            break
        }
    }
    while(answer == "no")
}

在 Kotlin 中调用子程序

Calling Subroutines in Kotlin

user-input

subroutine

kotlin