我似乎找不到有关子例程的任何信息以及如何在Kotlin中称呼它们。我是通过创建一个系统来练习的,该系统从用户那里获取输入,并显示内容,提示用户如果信息正确,或者否,则表示"是"。然后,它要求他们输入"重置"以输入子例程,直到他们输入是。
代码没有错误,但是当我进入"重置"阶段时,子例程从未被调用,并且程序只是悬挂。它使我能够输入其他内容,但后来终止程序。
这是以下代码:
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 $email")
println("Are you sure this is the correct information about you? Type yes or no.")
if(answer != "yes"){
println("Awesome. Details have been saved.")
break
}
}
}
做循环可以给您想要实现的效果,因此请尝试 -
fun loop (){
do {
println("Enter your name")
val name = readLine()
println("Enter your email")
val email = readLine()
println("Enter your location")
val location = readLine()
println("$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")
}