使用netcore编写对比excel差异

一、新建项目Vlook项目

using MiniExcelLibs;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Data;
using System.IO;namespace Vlook
{internal class Program{static void Main(string[] args){var dir = AppContext.BaseDirectory;Console.WriteLine("请输入对比的Excel源：");var fileName1 = Console.ReadLine();var path1 = Path.Combine(dir, fileName1);Console.WriteLine("请输入对比的Exce2源：");var fileName2 = Console.ReadLine();var path2 = Path.Combine(dir, fileName2);var rows1 = MiniExcel.Query(path1);var rows2 = MiniExcel.Query(path2);var equalColumns = new List<string>();Console.WriteLine("请输关联列，输入0退出：");while (true){var column = Console.ReadLine();if (column.ToString().ToLower() == "0"){break;}equalColumns.Add(column);}var compareColumns = new List<string>();Console.WriteLine("请输对比的列，输入0退出：");while (true){var column = Console.ReadLine();if (column.ToString().ToLower() == "0"){break;}compareColumns.Add(column);}var moreDatas = new List<object>();var lessDatas = new List<object>();var diffDatas = new List<object>();var sameDatas = new List<object>();var tuple = CompareCore(rows1, rows2, equalColumns, compareColumns);moreDatas.AddRange(tuple.moreDatas);diffDatas.AddRange(tuple.diffDatas);sameDatas.AddRange(tuple.sameDatas);var tuple2 = CompareCore(rows2, rows1, equalColumns, compareColumns);lessDatas.AddRange(tuple2.moreDatas);var compareResultPath= Path.Combine(dir, DateTime.Now.ToString("yyyy-MM-dd HH_mm_ss").ToString()+"_对比结果.xlsx");var sheets = new Dictionary<string, object>{["moreDatas"] = moreDatas,["lessDatas"] = lessDatas,["diffDatas"] = diffDatas,["sameDatas"] = sameDatas};MiniExcel.SaveAs(compareResultPath, sheets);Console.WriteLine("Done");}private static (List<object> moreDatas, List<object> diffDatas, List<object> sameDatas) CompareCore(IEnumerable<dynamic> rows1, IEnumerable<dynamic> rows2, List<string> equalColumns, List<string> compareColumns){var moreDatas = new List<object>();var diffDatas = new List<object>();var sameDatas = new List<object>();var i = 0;foreach (var row1 in rows1){if (i == 0){i++;continue;}var equalColumnValue1 = GetEqualColumnValue(row1, equalColumns);var exist = false;dynamic row2Temp = null;var j = 0;foreach (var row2 in rows2){if (j == 0){j++;continue;}var equalColumnValue2 = GetEqualColumnValue(row2, equalColumns);if (equalColumnValue1 == equalColumnValue2){exist = true;row2Temp = row2;break;}j++;}if (exist){var compareColumnValue1 = GetCompareColumnValue(row1, compareColumns);var compareColumnValue2 = GetCompareColumnValue(row2Temp, compareColumns);if (compareColumnValue1 == compareColumnValue2){sameDatas.Add(row1);}else{diffDatas.Add(row1);}}else{moreDatas.Add(row1);}i++;}return ( moreDatas,  diffDatas,sameDatas);}private static string GetEqualColumnValue(dynamic row, List<string> equalColumns){var str = "";foreach (var equalColumn in equalColumns){str += ((IDictionary<string, object>)row)[equalColumn];}return str;}private static string GetCompareColumnValue(dynamic row, List<string> compareColumns){var str = "";foreach (var compareColumn in compareColumns){str += ((IDictionary<string, object>)row)[compareColumn];}return str;}}
}

二、首先我们准备两个Products1.xlsx和Products2.xlsx，并给出差异

Products1.xlsx