kotlin - 为什么这个while循环在kotlin中只运行一次?
问题描述
package search
import java.util.*
import kotlin.system.exitProcess
fun main() {
val scanner = Scanner(System.`in`)
println("Enter the number of people: ")
val datasetSize = scanner.nextInt()
println("Enter all people: ")
val dataset = Array<String>(datasetSize){readLine()!!}
println("===Menu===")
println("1. Find a person")
println("2. Print all people")
println("0. Exit")
var choice = scanner.nextInt()
while(true){
when(choice) {
1 -> find(datasetSize,dataset)
2 -> listp(datasetSize,dataset)
0 -> exitProcess(-1)
else -> println("Incorrect option! Try again.")
}
}
}
解决方案
您需要将这些东西放在while循环中以在控制台中多次显示
println("===Menu===")
println("1. Find a person")
println("2. Print all people")
println("0. Exit")
var choice = scanner.nextInt()