Kotlin withContext详解与suspend和inline

 withContext

package com.mykotlinapp.scope

import kotlinx.coroutines.CoroutineDispatcher
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.coroutineScope
import kotlinx.coroutines.delay
import kotlinx.coroutines.launch
import kotlinx.coroutines.runBlocking
import kotlinx.coroutines.withContext

@OptIn(ExperimentalStdlibApi::class)
fun main() {
    runBlocking(Dispatchers.IO) {

        println(coroutineContext.get(CoroutineDispatcher).toString())
        launch {

            //挂起操作，阻塞当前协程
            val res = withContext(Dispatchers.Default) {
                delay(2000)
                println(coroutineContext.get(CoroutineDispatcher).toString())
                1
            }

        }

      
        println(coroutineContext.get(CoroutineDispatcher).toString())


    }


}

suspend

package com.mykotlinapp.scope

import kotlinx.coroutines.delay
import kotlinx