字符串比较C＃ - 全字匹配 [英] String compare C# - whole word match

问题描述

我有两个字符串：

string1  = "theater is small"; 
string2 =  "The small thing in the world";

我需要检查天气字符串的是字符串present与否。结果
我可以使用包含的功能，但它可以做整个单词匹配？即它不应该匹配字符串1的战区！

I need to check weather the string "the" is present in the strings or not.
I can use the contains function, but can it do a whole word match? i.e it should not match with "theater" of string1!

推荐答案

最简单的解决方法是使用常规的前pressions和单词边界分隔符 \\ b ：

The simplest solution is to use regular expressions and the word boundary delimiter \b:

bool result = Regex.IsMatch(text, "\\bthe\\b");

或者，如果你想找到不匹配的市值，

or, if you want to find mismatching capitalisation,

bool result = Regex.IsMatch(text, "\\bthe\\b", RegexOptions.IgnoreCase);

（使用System.Text.RegularEx pressons ）

另外，你可以分割你的文字为单个单词和搜索结果数组。然而，因为它没有足够的拆就空白，这并不总是微不足道的;这会忽略所有的标点和产生错误的结果。一个解决方案是再次使用常规的前pressions，即 Regex.Split 。

Alternatively, you can split your text into individual words and search the resulting array. However, this isn’t always trivial because it’s not enough to split on white spaces; this would ignore all punctuation and yield wrong results. A solution is to once again use regular expressions, namely Regex.Split.

这篇关于字符串比较C＃ - 全字匹配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IT屋！