Question

我似乎无法找到有关子程序的任何信息以及如何在Kotlin中调用它们。我正在练习创建一个系统，该系统从用户那里获取输入并显示提示用户在信息正确时说“是”的内容，如果不是，则显示“否”。然后它要求他们输入“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“重置”阶段时，子程序永远不会被调用，程序就会挂起。它允许我输入其他东西，但然后只是结束程序。

以下是代码：

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

while循环可以提供你想要达到的效果，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调用子程序

1 个答案: