Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
158 views
in Technique[技术] by (71.8m points)

c# - Why should the Main() method be static?

I tried to create public void Main() in C#; it says no static void Main found.
What exactly does it mean for Main to be static? I know the code works fine for public static void Main().

But why does Main have to be static?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

You need an entry point into your program. Static means that you can call the function without having to instantiate an object/instance of a class. It's a bit "chicken and egg"... you can't instantiate an object before you're inside the program.

A static method can be called without instantiating an object. Therefore main() needs to be static in order to allow it to be the entry to your program.

As David says, you can just add the keyword static to the function definition to change it. It's worth looking into static (class) methods vs instance methods, and knowing the difference can be useful at times.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...