如何显示"@coroutine#2"，"@coroutine#3"，"@coroutine#1“？

Question

import kotlinx.coroutines.*

fun log(msg: String) = println("[${Thread.currentThread().name}] $msg")

fun main() = runBlocking<Unit> {
    val a = async {
        log("I'm computing a piece of the answer")
        6
    }
    val b = async {
        log("I'm computing another piece of the answer")
        7
    }
    log("The answer is ${a.await() * b.await()}")    
}

科特林文献

主@coroutine#2我正在计算答案的一部分主@coroutine#3我正在计算答案的另一部分主@coroutine#1答案是42

Intellij IDEA和Android的IDE

我正在计算一个答案主，我正在计算另一个答案主，答案是42

如何显示"@coroutine#2“、"@coroutine#3”、“@coroutine#1”？

Answer 1

打开运行/调试配置窗口，并将-Dkotlinx.coroutines.debug添加到VM选项中

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这样做之后，您将得到以下输出：

[main @coroutine#2] I'm computing a piece of the answer
[main @coroutine#3] I'm computing another piece of the answer
[main @coroutine#1] : The answer is 42