Question

那么，我试图在另一个内部创建一个结构，但我遇到了麻烦...

代码：

    using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace WAMServer
{
    class PStruct
    {
        public static PStruct.Player[] player = new PStruct.Player[100];
        public struct Player
        {
            public int ID;
            public string Username;
            public string Password;
            public PStruct.Character[] character = new PStruct.Character[2];
        }

        public struct Character
        {
            public string CharacterName;
            public string Gender;
            public string ClassId;
            public string Level;
            public sbyte MapId;
            public int X;
            public int Y;
        }
    }
}

使用struct：

PStruct.player[index].character[Convert.ToInt32(ID)].CharacterName = br.ReadString();
PStruct.player[index].character[Convert.ToInt32(ID)].Gender = br.ReadString();
PStruct.player[index].character[Convert.ToInt32(ID)].ClassId = br.ReadString();
PStruct.player[index].character[Convert.ToInt32(ID)].Level = br.ReadString();

和

string charName = (PStruct.player[clientId].character[Convert.ToInt32(charId)].CharacterName);

string charGender = (PStruct.player[clientId].character[Convert.ToInt32(charId)].Gender);

string charClass = (PStruct.player[clientId].character[Convert.ToInt32(charId)].ClassId);

string charLevel = (PStruct.player[clientId].character[Convert.ToInt32(charId)].Level);

我得到的信息是：在struct

中不能有实例字段初始值设定项

在行中：

public PStruct.Character[] character = new PStruct.Character[2];

任何人都可以帮助我？

Answer 1

您不能在结构中执行此操作。

public PStruct.Character[] character = new PStruct.Character[2]; //doesn't work

new PStruct.Character[2];是编译器遇到问题的原因。也就是说，您正在初始化内联字段。初始化结构中字段的唯一方法是通过显式构造函数来获取参数，因为在结构中也不能有明确的无参数构造函数。

public struct Player
{
    public Player() { } // doesn't work either - constructor must have parameters  
}

要完成你想要的并保持它作为结构（并且在实例化结构时不必传递虚拟参数），解决方法是使用具有显式getter和setter的良好的老式属性：

public struct Player
{
    public int ID;
    public string Username;
    public string Password;

    private PStruct.Character[] character;
    public PStruct.Character[] Character 
    {
        get 
        { 
            if (null == character) 
                character = new PStruct.Character[2]; // works

            return character; 
        }
        set 
        { 
            character = value; 
        }
    }
}

Answer 2

将你的内心结构改为上课，你就没事了。

结构中的结构

2 个答案: