c# object.Dispose() 或 object = null

Question

您好，我有一个对象是一次性的，我想知道哪个更好:

this.object.Dispose();

或

this.object = null;

或

this.object.Dispose();
this.object = null;

Answer 1

Dispose 更好，更好的方法是使用 using 中的对象阻止并让框架处理它。

对于:this.object.Dispose(); 与 this.object = null;

将对象设置为 null 可能会导致遗漏未处理的非托管资源。 IDisposable 的全部目的是确保非托管资源在使用后被处置。

参见:IDisposable - MSDN

The primary use of this interface is to release unmanaged resources. The garbage collector automatically releases the memory allocated to a managed object when that object is no longer used. However, it is not possible to predict when garbage collection will occur. Furthermore, the garbage collector has no knowledge of unmanaged resources such as window handles, or open files and streams.