[英]Converting a string array from WWW to a class list in Unity3d
我在将WWW字符串数组转换为类列表时遇到麻烦。 我想做的是实例化一个其中包含许多文本元素的预制件。 这是基类
public class VehicleIndex : MonoBehaviour
{
public string ID{ get; set;}
public string Make{ get; set;}
public string Model{ get; set;}
public string Year{ get; set;}
public string Mileage{ get; set;}
public VehicleIndex(string id, string make, string model, string year, string mileage)
{
this.ID = id;
this.Make = make;
this.Model = model;
this.Year = year;
this.Mileage = mileage;
}
}
这是从Mysql数据库获取WWW数据的函数
public List<VehicleIndex> VehicleIndexList = new List<VehicleIndex> ();
public string[] VehicleStringArray;
public IEnumerator GetAllVehicles()
{
WWW VehicleData = new WWW ("http://localhost/CMVM/LoadVehicle.php");
yield return VehicleData;
Debug.Log (VehicleData.text);
string TheVehicleData = VehicleData.text;
The information comes back just fine.
if(TheVehicleData[TheVehicleData.Length - 1] == '/')
{
TheVehicleData.TrimEnd('/'); Here I'm removing the delimiter
}
string[] results = TheVehicleData.Split(new char[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
for (int i = 0; i < results.Length; i++)
{
Debug.Log (results[i]);
}
VehicleStringArray = results; The results go back into an array
VehicleIndexList = VehicleStringArray.Select(sArr => new VehicleIndex
{
ID=VehicleStringArray[0],
Make=VehicleStringArray[1],
Model=VehicleStringArray[2],
Year=VehicleStringArray[3],
Mileage=VehicleStringArray[4]
}).ToList();
}
看起来只有在出现错误时它才应该工作: VehicleIndex' does not contain a constructor that takes
类型VehicleIndex' does not contain a constructor that takes
0参数作为参数VehicleIndex' does not contain a constructor that takes
我缺少什么? 我需要在课堂上添加一些内容吗? 一个列表? 数组? 谢谢您的帮助! 我真的很感激。
附加-添加了对象初始化器
public VehicleIndex Vi;
然后将lambda表达式更改为
VehicleIndexList = VehicleStringArray.Select(sArr => new VehicleIndex
{
Vi.ID==VehicleStringArray[0],
Vi.Make==VehicleStringArray[1],
Vi.Model==VehicleStringArray[2],
Vi.Year==VehicleStringArray[3],
Vi.Mileage==VehicleStringArray[4]
}).ToList();
避免出现红线的唯一方法是使用double equal。 我不确定这是否正确,因为它仍然无法正常工作,我猜测是不正确的。
您有一个将所有属性用作参数的构造函数; 只需使用它而不是对象初始化器即可:
VehicleIndexList = VehicleStringArray.Select(sArr => new VehicleIndex
(
VehicleStringArray[0],
VehicleStringArray[1],
VehicleStringArray[2],
VehicleStringArray[3],
VehicleStringArray[4]
)).ToList();
但是请注意,构造函数通常仅需要对象正常运行所需的参数。 如果不需要属性值,则删除构造函数并使用初始化语法( new VehicleIndex { }
)没什么错。
这与JavaScript的join()基本相同
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