Type alias or full namespace

Question

Does it affect performance to use type alias rather than full namespace? For example, import just Form class using Form = System.Windows.Forms.Form; or import all types using System.Windows.Forms;

Answer 1

No this has absolutely no affect on the performance of your application. This could in theory have an affect on compilation time. But it would almost certainly be insignificant.

Answer 2

两者都没有完全一样的性能，只是个人喜好-它被编译为相同的代码。

Answer 3

绝对没有区别-编译器会在运行之前对其进行解析。

Answer 4

否。在运行时没有任何问题（生成的二进制文件是相同的），并且编译时的影响实际上可以忽略。