• 实习期学到的技术(一)


    数据清洗

    从基础数据表中整理出自己想要的数据,在进行拼接,最后存入事先创建好的表中。

    具体方法(1)

    定义一个抽象类的方法(基础的操作方法    提供访问)

    public abstract class OperationBase
    {
    protected string _conntionString = ConfigurationManager.ConnectionStrings["SqlServerDBConn"].ConnectionString;
    protected string _conntionStringStatistics = ConfigurationManager.ConnectionStrings["SqlServerDBConnStatistics"].ConnectionString;

    public delegate void ErrorMessageDelegate(Exception ex);
    public delegate void SuccessDelegate();
    /// <summary>
    /// 错误信息
    /// </summary>
    public string ErrorMessage { get; protected set; }

    /// <summary>
    /// 获取错误回调函数
    /// </summary>
    public abstract event ErrorMessageDelegate ErrorMessageCallBack;
    /// <summary>
    /// 获取成功回调函数
    /// </summary>
    public abstract event SuccessDelegate SuccessCallBack;
    public abstract bool Main();
    protected abstract void DataImport(params object[] data);
    }

    (2)调用抽象类OperationBase

    public class GetRoadNetworkAnalysisOP : OperationBase
    {

    public override event ErrorMessageDelegate ErrorMessageCallBack;
    public override event SuccessDelegate SuccessCallBack;

    //程序出入口

    public override bool Main()
    {

    //  throw new NotImplementedException();

    }

    //数据的导入(删除原来的数据在添加新的数据)

    protected override void DataImport(params object[] data)
    {

    //  throw new NotImplementedException();
    }

    //自己写一个返回list<> (从基础数据中得到想要的数据)

     private List<RoadNetworkAnalysisBase> RoadNetworkAnalysis_GetRoadNetworkAnalysis()
    {

    (定义所需要字段的标的实体)

    (在定义接收数据的实体)

    数据拼接(可以写sql,list<>)

    返回数据

    }

    }

    (3)

    public class GetRoadNetworkAnalysis
    {
    public delegate List<RoadNetworkAnalysisBase> RoadNetworkAnalysisDataBind();

    /// <summary>
    /// 获取数据
    /// </summary>
    public event RoadNetworkAnalysisDataBind RoadNetworkAnalysisInfo;


    public List<RoadNetworkAnalysisBase> BasislistRoadNetworkAnalysis { get; private set; }
    public List<S_RoadNetworkAnalysis> ResultRoadNetworkAnalysis { get; private set; }

    public List<T_Administrative> Administrative { get; private set; }
    public List<T_Company> Company { get; private set; }

    public GetRoadNetworkAnalysis(/*string regoinCode*/)
    {
    BasislistRoadNetworkAnalysis = new List<RoadNetworkAnalysisBase>();
    ResultRoadNetworkAnalysis = new List<S_RoadNetworkAnalysis>();
    }

    /// <summary>
    /// 数据清洗
    /// </summary>
    public void DataCleaning()
    {
    if (RoadNetworkAnalysisInfo == null)
    {
    return;
    }
    else
    {
    BasislistRoadNetworkAnalysis = RoadNetworkAnalysisInfo(/*RegoinCode*/);
    GetRoadNetworkAnalysisInfo();
    }
    }

    public List<S_RoadNetworkAnalysis> GetRoadNetworkAnalysisInfo()
    {

    return ResultRoadNetworkAnalysis;

    }

    }

    --完

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  • 原文地址:https://www.cnblogs.com/fxiaojingling/p/8991019.html
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