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基金净值估算程序 C#实现

By jerrxjr1220 at 2023-07-24 • 0人收藏 • 877人看过
jerrxjr1220

原来天天基金或者支付宝上都能直接看到当天的基金估值，从今天开始基金的当天估值全部下架了（真是把股民/基民当韭菜了，而且是套着麻袋割）

为了能实时看到基金的净值估值，只能自己通过基金公布的重仓股票份额自行估算涨跌。

于是就有了下面的代码，C#实现 Linqpad版，基金的持股份额保存在SQLite数据库中，其实也可以通过查询获取。

var jj = new JiJin("002910");
var stocks = Stocks.Select(x=>x);
foreach (var item in stocks) {    
    var change = GetStockChange(item.Stockname);
    jj.Stock[item.Stockname] = ((double)item.Percentage, change*0.01);
}
jj.Calculate();
jj.Dump();
$"{DateTime.Now.ToShortDateString()} 基金002910的净值估计变动{jj.TotalChange*100}%".Dump();

double GetStockChange(string code)
{
    double change = 0;
    var wc = new WebClient();
    wc.Headers.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36 Edg/115.0.1901.183");
    var str = wc.DownloadString("http://qt.gtimg.cn/q=" + code);
    var data = str.Split("~");
    change = Convert.ToDouble(data[32].Trim());
    return change;
}

class JiJin
{
    public string Name { get; private set; }
    public Dictionary<string, (double, double)> Stock {get; set;} = new();
    public double TotalChange {get; set;}
    public JiJin(string name) {
        Name = name;
    }
    public double Calculate() {
        double total=0;
        double totalpercent=0;
        double totalchange=0;
        double count=0;
        foreach (var item in Stock) {
            total += item.Value.Item1 * item.Value.Item2;
            totalpercent += item.Value.Item1;
            totalchange += item.Value.Item2;
            count++;
        }
        totalchange /= count;
        total += (1-totalpercent)*totalchange;
        TotalChange = total;
        return TotalChange;
    }
}

jj.png

13 个回复 | 最后更新于 2023-10-20
jerrxjr1220
jerrxjr1220
2023-07-24   #1

估计的净值，难免是有误差，但是总好过被套着麻袋割韭菜

jerryxjr1220
jerryxjr1220
2023-07-24   #2

改进了一下，直接输入基金代码可以自动查询持仓并计算净值。

通过解析天天基金的网页进行计算。

var jj = new JiJin("012414");
jj.GetChiCang();
jj.Calculate();
$"{DateTime.Now.ToShortDateString()} 基金{jj.Name}的净值估计{jj.TotalChange*100}%".Dump();

class JiJin
{
    public string Name { get; private set; }
    public Dictionary<string, (double, double)> Stock { get; set; } = new();
    public double TotalChange { get; set; }
    public JiJin(string name)
    {
        Name = name;
    }
    public double Calculate()
    {
        double total = 0;
        double totalpercent = 0;
        double totalchange = 0;
        double count = 0;
        foreach (var item in Stock)
        {
            total += item.Value.Item1 * item.Value.Item2;
            totalpercent += item.Value.Item1;
            totalchange += item.Value.Item2;
            count++;
        }
        totalchange /= count;
        total += (1 - totalpercent) * totalchange;
        TotalChange = total;
        return TotalChange;
    }

    public void GetChiCang()
    {
        var wc = new WebClient();
        wc.Headers.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36 Edg/115.0.1901.183");
        var str = wc.DownloadString($"http://fund.eastmoney.com/{Name}.html");
        HtmlDocument doc = new HtmlDocument();
        doc.LoadHtml(str);
        var node = doc.DocumentNode.SelectSingleNode("//*[@id='position_shares']/div[1]/table");
        var content = node.InnerText;
        var c = content.Split("  ").Where(x => x.Length > 0);
        var list = c.ToArray()[4..];
        for (var i=0; i<list.Length;i++) {
            if (list[i].EndsWith("%") && list[i+1].EndsWith("%")) {
                Stock[list[i-1]] = (Convert.ToDouble(list[i][..^1])*0.01, Convert.ToDouble(list[i+1][..^1])*0.01);
            }
        }
    }
}

2023/7/24 星期一 基金012414的净值估计-1.1309255000000003%

jj.pngjj.png

对比实际当天净值，基本上还可以。

admin
admin
2023-07-25   #3

牛, 生产力工具好评

hi_aardio
hi_aardio
2023-07-26   #4

都缺money

鸿湖重工业株式会社

大佬可不可以用aardio改写这个估值程序？

jerryxjr1220
jerryxjr1220
2023-07-26   #6

回复#5 @鸿湖重工业株式会社 :

完整工程文件下载：

MyJiJin.zip

aardio不是可以直接调用C#的类的吗？

import console;
console.setTitle("MyJiJin");

import dotNet;
var dll = dotNet.load("\res\JiJin.dll");
var JiJin = dll.import("JiJin");

var jj = JiJin.JiJin("002910");
jj.GetChiCang();
jj.Calculate();

console.log(jj.TotalChange);
 
console.pause();

jj.png

jerryxjr1220
jerryxjr1220
2023-07-27   #7

换了个异步写法，调用天天基金的api接口并解析json列表

var myjj = new JiJin("002910");
myjj.Adjustment = 0.9;
myjj.GetStocks();
myjj.Calculate();
myjj.Dump();


public class JiJin {
    public string _Code { get; private set; }
    public string _Name { get; private set; }
    public double TotalChange {get; set;}
    public double Adjustment {get; set;} = 1;
    public List<Dictionary<string, (double, double)>> Stocks = new List<Dictionary<string, (double, double)>>();
    public JiJin (string code) {
        _Code = code;
    }
    JToken GetChiCang() {
        var wc = new HttpClient();
        wc.DefaultRequestHeaders.Add("User-Agent", "EMProjJijin/6.2.8 (iPhone; iOS 13.6; Scale/2.00)");
        wc.DefaultRequestHeaders.Add("GTOKEN", "98B423068C1F4DEF9842F82ADF08C5db");
        wc.DefaultRequestHeaders.Add("clientInfo", "ttjj-iPhone10,1-iOS-iOS13.6");
        wc.DefaultRequestHeaders.Add("ContentType", "application/x-www-form-urlencoded");
        wc.DefaultRequestHeaders.Add("Host", "fundmobapi.eastmoney.com");
        wc.DefaultRequestHeaders.Add("Referer", "https://mpservice.com/516939c37bdb4ba2b1138c50cf69a2e1/release/pages/FundHistoryNetWorth");
        var resp = wc.GetStringAsync($"https://fundmobapi.eastmoney.com/FundMNewApi/FundMNInverstPosition?FCODE={_Code}&OSVersion=14.3&appVersion=6.3.8&deviceid=3EA024C2-7F22-408B-95E4-383D38160FB3&plat=Iphone&product=EFund&serverVersion=6.3.6&version=6.3.8");
        return JConstructor.Parse(resp.Result)["Datas"]["fundStocks"];
    }

    async Task<double> GetStockChange(string code)
    {
        double change = 0;
        var wc = new HttpClient();
        wc.DefaultRequestHeaders.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36 Edg/115.0.1901.183");
        var bytes = await wc.GetByteArrayAsync("http://qt.gtimg.cn/q=" + code);
        var str = Encoding.UTF8.GetString(bytes);
        var data = str.Split("~");
        change = Convert.ToDouble(data[32].Trim());
        return change;
    }

    public void GetStocks() {
        var chicang = GetChiCang();
        foreach (var each in chicang) {
            var stock = ((string)each["GPDM"]).StartsWith("6") ? "sh"+(string)each["GPDM"] : "sz"+(string)each["GPDM"] ;
            var ccbl = (double)each["JZBL"];
            var change = GetStockChange(stock).Result;
            Dictionary<string, (double, double)> s = new Dictionary<string, (double, double)>();
            s[stock] = (ccbl, change);
            Stocks.Add(s);
        }
    }

    public double Calculate()
    {
        double total = 0;
        double totalpercent = 0;
        double totalchange = 0;
        int count = 0;
        foreach (var stock in Stocks)
        {
            KeyValuePair<string, (double, double)> pair = stock.FirstOrDefault();
            total += pair.Value.Item1 * pair.Value.Item2 * 0.0001;
            totalpercent += pair.Value.Item1 * 0.01;
            totalchange += pair.Value.Item2 * 0.01;
            count++;
        }
        totalchange /= count;
        total += (1 - totalpercent) * totalchange;
        TotalChange = total * Adjustment;
        return TotalChange;
    }
}


鸿湖重工业株式会社

回复#6 @jerryxjr1220 :

是的，大佬，aardio可以调用C#的dll，只是我还没琢磨透，有的dll调用没问题，有的dll调用就出问题，一直搞不清楚是什么原因。。。

jerryxjr1220
jerryxjr1220
2023-07-28   #9

回复#8 @鸿湖重工业株式会社 :

这个还要看你调用的dll，有些比如申明了允许外部调用，有些可能是私有的，还有些可能是受保护的，或者是只读或者只写的属性。

例如，上面的这个类

public class JiJin {
    public string _Code { get; private set; }
    public string _Name { get; private set; }
    public double TotalChange {get; set;}
    public double Adjustment {get; set;} = 1;
    public List<Dictionary<string, (double, double)>> Stocks = new List<Dictionary<string, (double, double)>>();
    public JiJin (string code) {
        _Code = code;
    }
    ...

这个类的“_Code”的写属性就是私有的，只能在创建时修改“_Code”的值，外部调用时只能是只读的，你要写就会报错。

jerryxjr1220
jerryxjr1220
2023-10-19   #10 
<hc:GlowWindow x:Class="WPFFundation.Views.MainWindow"
               xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
               xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
               xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
               xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
               xmlns:vm="clr-namespace:WPFFundation.ViewModels"
               xmlns:i="http://schemas.microsoft.com/xaml/behaviors"
               xmlns:hc="https://handyorg.github.io/handycontrol"
               d:DataContext="{d:DesignInstance Type=vm:MainViewModel}"
               mc:Ignorable="d"
               Title="MainWindow" Height="750" Width="600"
               FontFamily="JetBrains Mono"
               FontSize="{StaticResource TextFontSize}" Background="White">
    <Window.Resources>
    </Window.Resources>
    <hc:SimplePanel>
        <ScrollViewer x:Name="scrollViewer" VerticalScrollBarVisibility="Auto">
            <Grid>
                <Grid.RowDefinitions>
                    <RowDefinition Height="*" />
                    <RowDefinition Height="*" />
                    <RowDefinition Height="5*" />
                </Grid.RowDefinitions>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="2*" />
                    <ColumnDefinition Width="*" />
                    <ColumnDefinition Width="4*" />
                </Grid.ColumnDefinitions>
                <WrapPanel Grid.ColumnSpan="3" VerticalAlignment="Center">
                    <TextBlock Text="Fundation" Style="{StaticResource TextBlockDefaultDanger}"
                               FontSize="20" Margin="20" />
                    <TextBox hc:InfoElement.Placeholder="Input Fundation Code ..." FontSize="20" Foreground="Brown"
                             Style="{StaticResource TextBoxExtend}" Height="45" Width="300"
                             Text="{Binding FundationCode, Mode=TwoWay}" />
                    <Button Style="{StaticResource ButtonDashedDanger}" Margin="20"
                            Content="Search" FontSize="20" Height="40"
                            Command="{Binding SearchCommand}" />
                </WrapPanel>

                <StackPanel Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="3" HorizontalAlignment="Center">
                    <TextBox hc:InfoElement.Title="Adjustment" hc:InfoElement.TitlePlacement="Left"
                             hc:InfoElement.Placeholder="1" hc:TitleElement.Foreground="{StaticResource PrimaryBrush}"
                             Style="{StaticResource TextBoxExtend}" Width="400" Margin="0,10"
                             Text="{Binding FundationAdjustment, Mode=TwoWay}" />
                    <TextBox hc:InfoElement.Title="Fundation Name" hc:InfoElement.TitlePlacement="Left"
                             hc:TitleElement.Foreground="{StaticResource PrimaryBrush}"
                             Style="{StaticResource TextBoxExtend}" Width="400" Margin="0,5"
                             Text="{Binding FundationName}" />
                    <TextBox x:Name="estimate" hc:InfoElement.Title="Fundation Estimation"
                             hc:InfoElement.TitlePlacement="Left"
                             hc:TitleElement.Foreground="{StaticResource PrimaryBrush}"
                             Style="{StaticResource TextBoxExtend}" Width="400" Margin="0,5"
                             Text="{Binding FundationEstimation}" />
                    <i:Interaction.Triggers>
                        <i:DataTrigger Binding="{Binding FundationColor}" Value="green">
                            <i:ChangePropertyAction TargetName="estimate" PropertyName="Foreground" Value="Green" />
                        </i:DataTrigger>
                        <i:DataTrigger Binding="{Binding FundationColor}" Value="red">
                            <i:ChangePropertyAction TargetName="estimate" PropertyName="Foreground" Value="Red" />
                        </i:DataTrigger>
                    </i:Interaction.Triggers>
                </StackPanel>
                <ScrollViewer Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="3">
                    <ListBox ItemsSource="{Binding Fundation.Stocks}">
                        <ListBox.ItemTemplate>
                            <DataTemplate>
                                <WrapPanel>
                                    <TextBlock x:Name="name" Text="{Binding StockName}" Margin="70,10,10,10"
                                               FontSize="20" Width="150" />
                                    <TextBlock x:Name="price" Text="{Binding StockPrice}" Margin="10"
                                               FontSize="16" Width="80" />
                                    <TextBlock x:Name="percent"
                                               Text="{Binding StockChangePercent, StringFormat={}{0} %}" Margin="10"
                                               FontSize="16" Width="80" />
                                    <TextBlock x:Name="volume"
                                               Text="{Binding StockVolumePercentage, StringFormat={}{0} %}" Margin="10"
                                               FontSize="14" />
                                    <i:Interaction.Triggers>
                                        <i:DataTrigger Binding="{Binding StockColor}" Value="green">
                                            <i:ChangePropertyAction TargetName="percent" PropertyName="Foreground"
                                                                    Value="Green" />
                                        </i:DataTrigger>
                                        <i:DataTrigger Binding="{Binding StockColor}" Value="red">
                                            <i:ChangePropertyAction TargetName="percent" PropertyName="Foreground"
                                                                    Value="Red" />
                                        </i:DataTrigger>
                                    </i:Interaction.Triggers>
                                </WrapPanel>
                            </DataTemplate>
                        </ListBox.ItemTemplate>
                    </ListBox>
                </ScrollViewer>
            </Grid>
        </ScrollViewer>
    </hc:SimplePanel>
</hc:GlowWindow>
using System;
using System.ComponentModel;
using CommunityToolkit.Mvvm.ComponentModel;

namespace WPFFundation.Models;

public partial class StockModel : ObservableObject
{
    [ObservableProperty] private double _stockChangePercent;
    [ObservableProperty] private string _stockColor = "Grey";
    [ObservableProperty] private string? _stockName;
    [ObservableProperty] private double _stockPrice;
    [ObservableProperty] private double _stockVolumePercentage;

    public StockModel()
    {
        StockName = string.Empty;
    }
}

public partial class FundationModel : ObservableObject
{
    [ObservableProperty] private double _adjustment;
    [ObservableProperty] private double? _fundationChange;
    [ObservableProperty] private string _fundationName;
    [ObservableProperty] private double? _fundationValue;
    [ObservableProperty] private BindingList<StockModel> _stocks;
    [ObservableProperty] private DateTime _updateDateTime;

    public FundationModel()
    {
        Stocks = new BindingList<StockModel>();
    }
}
using System;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using Newtonsoft.Json.Linq;
using WPFFundation.Models;

namespace WPFFundation.ViewModels;

public partial class MainViewModel : ObservableObject
{
    [ObservableProperty] private FundationModel _fundation;
    [ObservableProperty] private double _fundationAdjustment = 1;
    [ObservableProperty] private string? _fundationCode;
    [ObservableProperty] private string _fundationColor = "black";
    [ObservableProperty] private string? _fundationEstimation;
    [ObservableProperty] private string? _fundationName;

    public MainViewModel()
    {
        Fundation = new FundationModel();
        //发送消息
        //WeakReferenceMessenger.Default.Send(new CustomizedMessage(new MessageModel()));
    }

    [RelayCommand]
    public async Task SearchAsync()
    {
        if(FundationCode.Length>=6)
            await GetStocksAsync(FundationCode);
    }

    public async Task<JToken> GetChiCangAsync(string fundationCode)
    {
        var wc = new HttpClient();
        wc.DefaultRequestHeaders.Add("User-Agent", "EMProjJijin/6.2.8 (iPhone; iOS 13.6; Scale/2.00)");
        wc.DefaultRequestHeaders.Add("GTOKEN", "98B423068C1F4DEF9842F82ADF08C5db");
        wc.DefaultRequestHeaders.Add("clientInfo", "ttjj-iPhone10,1-iOS-iOS13.6");
        wc.DefaultRequestHeaders.Add("ContentType", "application/x-www-form-urlencoded");
        wc.DefaultRequestHeaders.Add("Host", "fundmobapi.eastmoney.com");
        wc.DefaultRequestHeaders.Add("Referer",
            "https://mpservice.com/516939c37bdb4ba2b1138c50cf69a2e1/release/pages/FundHistoryNetWorth");
        var resp = await wc.GetStringAsync(
            $"https://fundmobapi.eastmoney.com/FundMNewApi/FundMNInverstPosition?FCODE={fundationCode}&OSVersion=14.3&appVersion=6.3.8&deviceid=3EA024C2-7F22-408B-95E4-383D38160FB3&plat=Iphone&product=EFund&serverVersion=6.3.6&version=6.3.8");
        return JObject.Parse(resp)["Datas"]!["fundStocks"]!;
    }

    public async Task<(double, double)> GetStockChangeAsync(string code)
    {
        double change;
        double price;
        var wc = new HttpClient();
        wc.DefaultRequestHeaders.Add("User-Agent",
            "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36 Edg/115.0.1901.183");
        var bytes = await wc.GetByteArrayAsync("http://qt.gtimg.cn/q=" + code);
        var str = Encoding.UTF8.GetString(bytes);
        var data = str.Split("~");
        change = Convert.ToDouble(data[32].Trim());
        price = Convert.ToDouble(data[3]);
        return (price, change);
    }

    public async Task GetStocksAsync(string fundationCode)
    {
        var chicang = await GetChiCangAsync(fundationCode);
        Fundation.Stocks.Clear();
        foreach (var each in (JArray)chicang)
        {
            double stockPrice;
            double stockChangePercent;
            var stockCode = ((string)each["GPDM"]!).StartsWith("6")
                ? string.Format("sh{0:D6}", int.Parse((string)each["GPDM"]!))
                : string.Format("sz{0:D6}", int.Parse((string)each["GPDM"]!));
            var ccbl = (double)each["JZBL"]!;
            var stockName = each["GPJC"]!.ToString();
            (stockPrice, stockChangePercent) = await GetStockChangeAsync(stockCode);
            var color = stockChangePercent > 0 ? "red" : "green";
            Fundation.Stocks.Add(new StockModel
            {
                StockName = stockName, StockPrice = stockPrice, StockChangePercent = stockChangePercent,
                StockVolumePercentage = ccbl, StockColor = color
            });
            Calculate();
        }
    }

    public void Calculate()
    {
        double sum = 0;
        double restPercentage = 100;
        double averageChangePercent = 0;
        foreach (var stock in Fundation.Stocks)
        {
            sum += stock.StockChangePercent * stock.StockVolumePercentage * 0.01;
            restPercentage -= stock.StockVolumePercentage;
            averageChangePercent += stock.StockChangePercent;
        }

        averageChangePercent /= Fundation.Stocks.Count;
        sum += restPercentage * averageChangePercent * 0.01;
        FundationEstimation = $"{sum * FundationAdjustment:F2} %";
        FundationColor = sum > 0 ? "red" : "green";
    }
}

//定义消息
// public class CustomizedMessage : ValueChangedMessage<MessageModel> // PropertyChangedMessage // RequestMessage ( Async + ..)
// {
//     public CustomizedMessage(MessageModel value) : base(value)
//     {
//     }
// }
using HandyControl.Controls;
using WPFFundation.ViewModels;

namespace WPFFundation.Views;

/// <summary>
///     Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : GlowWindow
{
    private readonly MainViewModel mainViewModel;

    public MainWindow()
    {
        InitializeComponent();

        #region 注册并接受消息

        //WeakReferenceMessenger.Default.Register<CustomizedMessage>(this, (o, m) => { MessageBox.Show("Received!"); });

        #endregion


        mainViewModel = new MainViewModel();
        DataContext = mainViewModel;
    }
}


hi_aardio
hi_aardio
2023-10-20   #11

能赚钱吗

我问的比较春。。。。

admin
admin
2023-10-20   #12

回复#11 @hi_aardio :

量化基金赚钱, 只是慢而已

jerryxjr1220
jerryxjr1220
2023-10-20   #13

回复#11 @hi_aardio :

我只分享编程技术，不是推荐投资基金啊

亏惨了别怨我

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