The problem is that you cannot have optional parameters in C# version less than 4.
You can find more information on this here.
You can solve it like this:
public class PItem
{
public String content;
public int count;
public int fee;
public int amount;
public String description;
// default values
public PItem(): this("", 0, 0, "", 0) {}
public PItem(String _content): this (_content, 0, 0, "", 0) {}
public PItem(String _content, int _count): this(_content, _count, 0, "", 0) {}
public PItem(String _content, int _count, int _fee): this(_content, _count, _fee, "", 0) {}
public PItem(String _content, int _count, int _fee, string _description): this(_content, _count, _fee, _description, 0) {}
public PItem(String _content, int _count, int _fee, string _description, int _amount)
{
content = _content;
count = _count < 0 ? 0 : _count;
fee = _fee;
description = _description;
amount = _amount < 0 ? 0 : _amount;
}
}
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…