C# 使用异步而不等待
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Using async without await
提问by Eric Yin
I'd like to make a function async, so I simply add asynclike this:
我想让一个函数异步，所以我简单地添加async如下：
public async static void something(){
}
You can see that its return-type is void. I just want this function to be called asynchronously without blocking, since return is voidso no awaitis needed.
可以看到它的返回类型是void. 我只是想这一功能，必须异步调用不会阻塞，因为回报void所以没有await需要。
But Visual Studio 2012 just cannot compile this, it says that I miss await?
但是 Visual Studio 2012 无法编译它，它说我想念await？
Could you please advise a sample that makes a function asyncwithout using await.
您能否提供一个示例，该示例async无需使用await.
采纳答案by svick
I think that maybe you misunderstand what asyncdoes. The warning is exactly right: if you mark your method asyncbut don't use awaitanywhere, then your method won't be asynchronous. If you call it, all the code inside the method will execute synchronously.
我想也许你误解了什么async。警告是完全正确的：如果你标记你的方法async但不在await任何地方使用，那么你的方法不会是 asynchronous。如果调用它，该方法内的所有代码都会同步执行。
Also, you should try to avoid using async voidmethods, they make handling exceptions difficult.
此外，您应该尽量避免使用async void方法，它们会使处理异常变得困难。
