.NET 异步编程

async/await用法

使用Thread

new Thread(() =>
{
    Thread.Sleep(1000);
    Console.WriteLine("吃饭");
    Thread.Sleep(1000);
    Console.WriteLine("睡觉");
    Thread.Sleep(1000);
    Console.WriteLine("打豆豆");
}).Start();

使用Task

await Task.Run(() =>
{
    Thread.Sleep(1000);
    Console.WriteLine("吃饭");
    Thread.Sleep(1000);
    Console.WriteLine("睡觉");
    Thread.Sleep(1000);
    Console.WriteLine("打豆豆");
});

但是 Task 存在问题：

此时可改写代码：

List tasks = new List();

tasks.Add(Task.Run(() =>
{
    Thread.Sleep(1000);
    Console.WriteLine("吃饭");
    Thread.Sleep(1000);
    Console.WriteLine("睡觉");
    Thread.Sleep(1000);
    Console.WriteLine("打豆豆");
}));

tasks.Add(Task.Run(() =>
{
    Thread.Sleep(1000);
    Console.WriteLine("吃饭");
    Thread.Sleep(1000);
    Console.WriteLine("睡觉");
    Thread.Sleep(1000);
    Console.WriteLine("打豆豆");
}));

Task.WaitAll(tasks.ToArray());

参考： .NET WaitAll - 掘金 (juejin.cn)