二维数组排序

本文介绍了二维数组排序的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 29岁程序员，3月因学历无情被辞！ 我需要对二维数组进行排序。每天我处理一个文件，其中包含9个/ b $ b逗号分隔的字段和不同数量的记录（行）。我想 拉入每一行，将它按照逗号分成二维 数组（Perl让它变成crissake），并按一个排序的字段（购买 订单＃）。麻烦的是，Array.Sort只支持单维数组。 最初我想制作一个锯齿状数组，取出购买 Order元素，将其分配给一个键值对应单个数组 行，排序并重新构造行，排序。很容易用英语说，不是很好的b / b 很容易为C＃noob。 - Steve Wasser http://xdissent.com 逆向社会话语和神经质的意见 解决方案 这里有一个如何对锯齿状数组进行排序的例子。要对任何数组进行排序，你需要告诉框架如何对 元素进行逐例比较。这是通过提供一个实现IComparer的类型来完成的。 这里一个名为ArrayComparer的IComparer比较一维数组，比较某个特定索引处的元素。 。 /> 公共类ArrayComparer：System.Collections.IComparer { int ix; public ArrayComparer（ int SortFieldIndex） { ix = SortFieldIndex; } public int Compare（对象） x，对象y） { IComparable cx =（IComparable）（（Array）x）。GetValue（ix）; IComparable cy =（IComparable）（（Array）y）。GetValue（ix）; 返回cx.CompareTo（cy）; } } ///< summary> ///应用程序的主要入口点。 ///< / summary> [STAThread] static void Main（string [] args） { string [] [] lines = new string [4] []; lines [0] = new string [] {" 1"，" a" ;，" d"}; lines [1] = new string [] {" 2"，" b"，" c"}; lines [2] = new string [] {" 3"，" c"，" b"}; lines [3] = new string [] {" 4"，" ; d"，" a"}; foreach（字符串[]行中的行） { 控制台。 WriteLine（第[0行]行）; } System.Array.Sort（行，新的ArrayComparer（2））; foreach（ string [] line in lines） { Console.WriteLine（line [0]）; } } David I need to sort a two-dimensional array. Each day I process a file with 9comma-delimited fields, and varying amount of records (lines). I want topull in each line, split it according to the comma into a two dimensionalarray (Perl has it f''r crissake), and sort by one of the fields (PurchaseOrder #). Trouble is, Array.Sort only supports single dimension arrays.Originally I was thinking of making a jagged array, pulling out the PurchaseOrder element, assigning it to a key value corresponding to the single arrayline, sort and re-construct the lines, sorted. Easy to say in English, notso easy for a C# noob.--Steve Wasser http://xdissent.comthe journal of contrarian social discourse and neurotic opinion 解决方案Here''s an example of how to sort a jagged array. To sort any array, youjust need to tell the framework how to perform pariwise comparisons on theelements. This is done by supplying a type implementing IComparer.Here an IComparer called ArrayComparer compares 1-dimensional arrays bycomparing elements at some particular index.public class ArrayComparer : System.Collections.IComparer{int ix;public ArrayComparer(int SortFieldIndex){ix = SortFieldIndex;}public int Compare(object x, object y){IComparable cx = (IComparable)((Array)x).GetValue(ix);IComparable cy = (IComparable)((Array)y).GetValue(ix);return cx.CompareTo(cy);}}/// <summary>/// The main entry point for the application./// </summary>[STAThread]static void Main(string[] args){string[][] lines = new string[4][];lines[0] = new string[] {"1","a","d"};lines[1] = new string[] {"2","b","c"};lines[2] = new string[] {"3","c","b"};lines[3] = new string[] {"4","d","a"};foreach (string[] line in lines){Console.WriteLine(line[0]);}System.Array.Sort(lines,new ArrayComparer(2));foreach (string[] line in lines){Console.WriteLine(line[0]);}}David 这篇关于二维数组排序的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！