FredGrit

2025年12月30日

WPF Prism.Wpf and Prism.DryIOC are both -v 8.1.97,implement mvvm,ioc,auto wire viewmodel ,MemoryCache,listbox loaded 10M pictures

摘要： Install-Package Prism.Wpf -v 8.1.97; Install-Package Prism.DryIOC -v 8.1.97;Install-Package System.Runtime.Caching; //memory cache CacheItemPolicy cac 阅读全文

posted @ 2025-12-30 23:45 FredGrit 阅读(2) 评论(0) 推荐(0)

PyTorch,MNIST,DataLoader,Transformer

摘要： import torch import torch.nn as nn import torch.optim as optim from torch.utils.data import Dataset, DataLoader, random_split from torchvision import 阅读全文

posted @ 2025-12-30 21:18 FredGrit 阅读(4) 评论(0) 推荐(0)

Python from tkinter import messagebox

摘要： import uuid import pandas as pd from datetime import datetime from tkinter import messagebox data_list=[] arr=range(1,1000001) for a in arr: data_list 阅读全文

posted @ 2025-12-30 20:36 FredGrit 阅读(1) 评论(0) 推荐(0)

2025年12月25日

Flask, react

摘要： python -m pip install faker -i https://pypi.tuna.tsinghua.edu.cn/simple #mock_data.py import json import random from datetime import datetime, timedel 阅读全文

posted @ 2025-12-25 00:31 FredGrit 阅读(7) 评论(0) 推荐(0)

2025年12月23日

WPF mvvm via Prism.Wpf,dependency injection via Prism.DryIOC

摘要： Install-Package Prism.Wpf Install-Package Prism.DryIOC //App.xaml <prism:PrismApplication x:Class="WpfApp46.App" xmlns="http://schemas.microsoft.com/w 阅读全文

posted @ 2025-12-23 22:08 FredGrit 阅读(7) 评论(0) 推荐(0)

Python Threading.Lock() threading.thread(target=lambda:[()])

摘要： import uuid import threading from datetime import datetime import time idx=0 idx_lock=threading.Lock() def get_time_uuid(): with idx_lock: global idx 阅读全文

posted @ 2025-12-23 20:38 FredGrit 阅读(2) 评论(0) 推荐(0)

Python pandas dataframe

摘要： import uuid import time from datetime import datetime import pandas as pd data_list=[] arr=range(1,10000001) for a in arr: data_list.append({ 'Id':a, 阅读全文

posted @ 2025-12-23 20:28 FredGrit 阅读(5) 评论(0) 推荐(0)

2025年12月12日

Python Flask.py as service, html and jquery act as web page, include navigation, filter data via columns, pagination every 20 items

摘要： from flask import Flask, jsonify, request, send_from_directory from flask_cors import CORS import pandas as pd import os import re app = Flask(__name_ 阅读全文

posted @ 2025-12-12 22:27 FredGrit 阅读(7) 评论(0) 推荐(0)

Python, extract dataframe via column names and extract rows via iloc

摘要： import uuid import pandas as pd import numpy as np from datetime import datetime #show all rows when print pd.set_option('display.max_rows',None) book 阅读全文

posted @ 2025-12-12 21:06 FredGrit 阅读(5) 评论(0) 推荐(0)

WPF Datagrid, add new blank row via contextmenu command not perfect but can resolve the issue concisely

摘要： private void AddRowCommandExecuted(object? obj) { var dg = obj as DataGrid; if (dg != null) { if (dg.ItemsSource is IList list) { var itemType = list. 阅读全文

posted @ 2025-12-12 20:11 FredGrit 阅读(7) 评论(0) 推荐(0)

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