一，代码：
//每1秒打印一下当前数字void tick10() async {for (int i = 1; i <= 10; i++) {await Future.delayed(Duration(seconds: 1),(){print("tick"+i.toString());});}}void myclick() async{tick10();print("a");//await tells dart to wait till this completes.// If it's not used before a future,// then dart doesn't wait till the future is completed and executes the next tasks/code.await Future.delayed(Duration(seconds:5),(){print("await返回b");});print("c");}
二，执行结果:
I/flutter (17391): a
I/flutter (17391): tick1
I/flutter (17391): tick2
I/flutter (17391): tick3
I/flutter (17391): tick4
I/flutter (17391): await返回b
I/flutter (17391): c
I/flutter (17391): tick5
I/flutter (17391): tick6
I/flutter (17391): tick7
I/flutter (17391): tick8
I/flutter (17391): tick9
I/flutter (17391): tick10
