runCatching异常捕获onSuccess/onFailure返回函数，Kotlin

 

fun test(a: Int, b: Int) {
    runCatching {
        a / b
    }.onSuccess {
        println("onSuccess: $it")
        return ok(it)
    }.onFailure {
        println("onFailure: $it")
        return fail(it)
    }
}

fun ok(o: Any) {
    println("ok: $o")
}

fun fail(o: Any) {
    println("fail: $o")
}

fun main(args: Array<String>) {
    test(0, 1)
    test(1, 0)
}

 

onSuccess: 0
ok: 0
onFailure: java.lang.ArithmeticException: / by zero
fail: java.lang.ArithmeticException: / by zero

 

 

 

 

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