Android Kotlin Channel的关闭

@Test
    fun `test close channel`() = runBlocking<Unit> {
        val channel = Channel<Int>(3)
        //生产者
        val producer = GlobalScope.launch {
            List(3) {
                channel.send(it)
                println("send ${it}")
            }
            channel.close()
            println("""close1. 
                | - CloseForSend isClosedForSend ${channel.isClosedForSend} 
                | - CloseForReceiver ${channel.isClosedForReceive}""".trimMargin())

        }

        val consumer = GlobalScope.launch {
                for(element in channel){
                    println("receive $element")
                    delay(1000)
                }
            println("""close2. 
                | - CloseForSend isClosedForSend ${channel.isClosedForSend} 
                | - CloseForReceiver ${channel.isClosedForReceive}""".trimMargin())
        }


        joinAll(producer, consumer)
    }

关闭不会被立即执行

要等到结束后才能完全关闭