C#地址引用问题
Pen A = new Pen(Color.Black, 2);
Pen B = new Pen(Color.White, 3);
B = A;
A.Color = Color.Red;
Pen B = new Pen(Color.White, 3);
B = A;
A.Color = Color.Red;
上述代码，A更改了，B也会随之更改，怎么让A管A B管B?
2020-04-21 14:50
2020-04-29 16:24
