Regex
System.Text.RegularExpressions.Regex regex应该是regular expression的缩写
https://msdn.microsoft.com/zh-cn/library/system.text.regularexpressions.regex(v=vs.110).aspx
Represents an immutable regular expression.【immutable 不可变的】 代表了不可变的正则表达式
The Regex class represents the .NET Framework's regular expression engine. //Regex类代表了.net framework中正则表达式工具
It can be used to quickly parse large amounts of text to find specific character patterns;//它可以用来快速解析大量文本来找到特殊的字形
to extract, edit, replace, or delete text substrings; //来提取,编辑,替代或删除文本的子字符串
and to add the extracted strings to a collection to generate a report. //也可以将提取到的字符串添加到一个集合来生成一个报告
RegexStringValidator
System.Configuration.RegexStringValidator
Provides validation of a string based on the rules provided by a regular expression. //根据正则表达式提供的规则,验证字符串的有效性
正则表达式的匹配规则
https://msdn.microsoft.com/zh-cn/library/az24scfc(v=vs.110).aspx