public string ExportExcel( DataSet ds,string saveFileName) { try { if (ds == null) return "数据库为空"; bool fileSaved = false; Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application(); if (xlApp == null) {…

using System; using System.Collections.Generic; using System.Data; using System.IO; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; namespace WebAPIServer.Models { [Serializable] public class Product { publi…

pipelines.py文件中 import codecs import csv # 保存到CSV文件中 class CsvPipeline(object): def __init__(self): self.file = codecs.open('a.csv', 'w', encoding='utf_8_sig') def process_item(self, item, spider): fieldnames = ['title', 'img_url', 'download_http'] w…

// 导出excel文件 /** * 依赖: import XLSX from 'xlsx' */ let obj = { '学生信息表': [ ['姓名', '性别', '年龄', '分数'], ['张三', '男', 18, parseInt(Math.random() * 100)], ['李四', '女', 22, parseInt(Math.random() * 100)] ], '教师信息表': [ ['姓名', '性别', '年龄', '教龄'], ['王五', '男', 18,…

include(dirname(__FILE__) .'/phpexcel-1.7.7/Classes/PHPExcel.php'); include(dirname(__FILE__) .'/phpexcel-1.7.7/Classes/PHPExcel/IOFactory.php'); $header_arr = array('A','B','C','D','E','F','G','H','I','J','K','L','M', 'N','O','P','Q','R','S','T','U'…

OLEObject ole_object , ole_workbooks ole_object = CREATE OLEObjectIF ole_object.ConnectToNewObject("Excel.Application") <> 0 THEN MessageBox('OLE错误','OLE无法连接!') returnEND IFole_object.workbooks.addole_object.Visible = Trueole_workbooks = o…

import pymongo import re client = pymongo.MongoClient('127.0.0.1', 27017) db_name = 'Trade' db = client[db_name] filter1 = {'$or':[{"phone": {'$ne':""}}, {"cell_phone": {'$ne':""}}]} filter2 = {'address':1, 'contact…

在数据库时候我设计了学生的分数为nvarchar(50),是为了在从TXT文件中读取数据插入到数据库表时候方便,但是在后期由于涉及到统计问题,比如求平均值等,需要int类型才可以,方法是:Convert(int,字段名).例如:select avg(Convert(int,M_Score)) from temp 建立视图,将视图当表示用 CREATE VIEW temp AS select StudentId, MAX(StudentScore) as M_Score from T_Studen…

效率最高的Excel数据导入---(c#调用SSIS Package将数据库数据导入到Excel文件中[附源代码下载])    本文目录: (一)背景 (二)数据库数据导入到Excel的方法比较   (三)SSIS的简介   (四)数据库中存储过程示例(SSIS应用需要) (五)Excel模板的制作(这步这么简单,稍微介绍一下)   (六)SSIS操作过程(生成Package,用来调用)(下一篇随笔将详细讲解制作Package包的过程,图片太多,篇幅过长,因此本文将直接采用生成的Package包…

using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using Syste…