在这也说明下,除此之外还可以通过 DataView 的方式来处理,当个人觉得这有点不好用.这里就不多作说明了 代码比较简单,直接看代码 using System; using System.Collections.Generic; using System.Data; using System.Linq; namespace DTS { class Program { static void Main(string[] args) { DataTable _dt = new DataTable(…
//抽取dt中的特定列"Region","Cur","Year"组合成新的dat DataTable dat = dt.DefaultView.ToTable(false, new string[]{ "Region","Cur","Year" }); DataView dv = new DataView(w_dt); //虚拟视图吧,我这么认为 //去除dv中的重复行并组合成新的dt2…
昨天向数据库中导入Excel数据时 由于空行 总是报错!下面附上两种去除空行的方法! 方法一.某行某列值为空时 DataView dv = dt.DefaultView; dv.RowFilter = "F1<>'' or F1 is not null";//F1为列名 System.Data.DataTable dt = dv.ToTable(); 方法二.整行为空时 protected voi…
DataTable分组统计: .用两层循环计算,前提条件是数据已经按分组的列排好序的. DataTable dt = new DataTable(); dt.Columns.AddRange(new DataColumn[] { new DataColumn("name", typeof(string)), new DataColumn("sex", typeof(string)), new DataColumn("score", typeof(…
def remove_js_css (content): """ remove the the javascript and the stylesheet and the comment content (<script>....</script> and <style>....</style> <!-- xxx -->) """ r = re.compile(r'''<scrip…
读取文件cdays−4-test.txt 内容,去除空行和注释行后,以行为单位进行排序,并将结果输出为cdays−4-result.txt. cdays−4-test.txt的内容 #some words Sometimes in life, You find a special friend; Someone who changes your life just by being part of it. Someone who makes you laugh until you can't s…
2016.10.4 filetype indent on syntax on set nu ai ci si set sw= ts= set autochdir set backspace= color slate set mouse=a set cursorline "---------- windows 配置 cd e:\acm set gfn=consolas:h18 "gvim map<F4> :w <CR> :!g++ % -g -o %<.ex…