Coroutine可以悬挂然后在其他线程上恢复吗？第一个线程的内存效果是否传递到第二个线程？
考虑
fun main(args: Array<String>) {
runBlocking {
launch(Dispatchers.Default) {
var a = 0
a++
delay(100)
println(a)
}
}
}
到调度程序具有多个线程，该程序是否有可能在悬挂delay> delay函数上更改线程？是否保证它将打印“ 1”或a需要atomicInteger？
Consider
fun main(args: Array<String>) {
runBlocking {
launch(Dispatchers.Default) {
var a = 0
a++
delay(100)
println(a)
}
}
}
Since the Dispatcher has multiple threads, is it possible for the program to change threads at the suspending delay function? Is it guaranteed that it will print '1' or does a need to be AtomicInteger?
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暂停delay（）函数后，Coroutine可能会继续在dispatchers.default.default线程池的另一个线程上执行。对于
a变量的附加同步不需要，因为它仅在一个coroutine中使用，因此在coroutine内部的代码顺序执行，如果是在保证之前。如果在几个coroutine中使用该变量，则需要比其他同步。After execution of the
suspend delay()function there is a possibility that the coroutine will continue execution on another thread from theDispatchers.Defaultthread pool.There is no need in additional synchronization for
avariable, because it is being used only within one coroutine, code within a coroutine executes sequentially, providing happens-before guarantees. If the variable was used within a couple of coroutine than additional synchronization would be needed.