Corouties

https://juejin.cn/post/6953441828100112392

https://www.cnblogs.com/joy99/p/15805916.html

协程启动模式

DEFAULT

https://codelabs.developers.google.com/codelabs/kotlin-coroutines/#1

Dispatchers

By default, Kotlin coroutines provides three Dispatchers: Main, IO, and Default.

The IO dispatcher is optimized for IO work like reading from the network or disk,

while the Default dispatcher is optimized for CPU intensive tasks.

runBlocking vs CoroutineScope

runBlocking is also a coroutine builder that bridges the non-coroutine world of a regular fun main() and the code with coroutines inside of runBlocking { … } curly braces. This is highlighted in an IDE by this: CoroutineScope hint right after the runBlocking opening curly brace.

https://kotlinlang.org/docs/coroutines-basics.html#your-first-coroutine

https://juejin.cn/post/6883652600462327821

runBlocking 只会等待相同作用域的协程完成才会退出

fun main{
	runBlocking{ // 不会阻塞正常的调用，阻塞主线程，让内部的程序执行完
		GlobalScope.launch{
      println("hello world")
    }
	}	
}

https://www.bilibili.com/video/BV1uo4y1y7ZF/?p=101

https://www.bilibili.com/video/BV1Yu411X73j?p=5

https://www.bilibili.com/video/BV164411C7FK?from=search&seid=2446477518780731765

https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-coroutine-scope/index.html