快速案件落空

swift case falling through(快速案件落空)

问题描述

swift 有没有通过语句?例如，如果我执行以下操作

Does swift have fall through statement? e.g if I do the following

var testVar = "hello"
var result = 0

switch(testVal)
{
case "one":
    result = 1
case "two":
    result = 1
default:
    result = 3
}

是否可以为案例一"和案例二"执行相同的代码?

is it possible to have the same code executed for case "one" and case "two"?

推荐答案

是的.你可以这样做:

var testVal = "hello"
var result = 0

switch testVal {
case "one", "two":
    result = 1
default:
    result = 3
}

或者，您可以使用 fallthrough 关键字:

Alternatively, you can use the fallthrough keyword:

var testVal = "hello"
var result = 0

switch testVal {
case "one":
    fallthrough
case "two":
    result = 1
default:
    result = 3
}

这篇关于快速案件落空的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持编程学习网！