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
185 views
in Technique[技术] by (71.8m points)

c# - Function Overloading

Let us suppose i have these three methods defined:

int F1(int, int);
int F1(float, float);
Float F1(int, int);

and i am calling method F1 here:

Console.writeline(F1(5,6).ToString()));

Which method it will call and why?

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)

The first and third function will not compile in the same namespace.

This is because function signatures are differentiated by type and number of parameters, and these are the same. Return types are not considered as part of the method signature.

If you only had the first and second (or second and third) in the name space, the most appropriate one would be called (the one with integer types passed in, as you are passing in integers).

Eric Lippert has some great blog entries about the subtleties of C#.


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

...