在c＃中找到完全匹配

本文介绍了在c＃中找到完全匹配的处理方法，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

我试图开发这个包含字符串（ing）和字符串数组（splitwords）的代码。 我需要运行一个字符串，如果它匹配字符串数组中的字符串做某事使用原始字符串。

Im trying to develop this code that haves a string(ing) and a string array (splitwords). I need to run a string and if it matches the string from the string array does something with that original string.

StringBuilder builder = new StringBuilder(); ing = " " + ing + " "; builder.Append(@"{\rtf1\ansi"); foreach (string word in splitwords) { if (Regex.IsMatch(ing, @"(?<![\w])" + word + @"(?![\w])")) { // for example put the word in UPPERCASE } builder.Append(ing); builder.Append(@"}"); return builder.ToString();

全部它运行的测试没问题，但是如果我有，那么 文字（ing）：我有一个带鸡蛋的收据，但其他只有一个鸡蛋; 单词（分词）：蛋，蛋，有收据 结果我得到使用上面的代码：我收到EGG的收据，但其他只有一个EGG 我需要的是：我收到了EGGS的收据，但其他人收到了只需一个EGG 如何更改我的if条件来解决这个问题？

With all the tests it runs ok, but if if I have Text(ing): "I have a receipt with eggs but others with just one egg"; Words(splitwords): "egg","eggs", "have a receipt" Result I get with the code above: "I HAVE A RECEIPT with EGG s but others with just one EGG" What I need : "I HAVE A RECEIPT with EGGS but others with just one EGG" How can I change my if condition to solve this problem?

推荐答案

示例代码： sample code: var splitwords =new string[] {"egg","eggs", "have a receipt"}; string input ="I have a receipt with eggs but others with just one egg"; foreach (string word in splitwords) { var regex = new Regex(@"(?<![\w])" + word + @"(?![\w])", RegexOptions.IgnoreCase); input = regex.Replace(input, m=>m.ToString().ToUpper()); } //inpt = "I HAVE A RECEIPT with EGGS but others with just one EGG"

只替换正则表达式的匹配项，那么它应该可以正常工作。

replace only the matching items of regex then it should work fine.