我正在为其创建正则表达式的一行文本。我已使用 rexex101.com 进行检查，结果我创建的正则表达式没有错误。这是文本行...
<Msg Date="2015/04/29" Time="12:13:39:187" DateReceived="2015/04/29" TimeReceived="12:13:39:187"><Layer Name="MC"><SourceLayer Name="GUI" /><Message Name="OperatorLogin" Id="1" Status="Successful" /></Layer></Msg>
这是正则表达式...
[<][a-zA-Z]\w+\s[a-zA-Z]\w+[=]"(?<date>(?<year>(?:\d{4}|\d{2})[\/\-](?<month>\d{1,2})[\/\-](?<day>\d{1,2})))"\s[a-zA-Z]\w+[=]"(?<time>(?<hour>\d{2}):(?<minutes>\d{2}):(?<seconds>\d{2}:(?<milli>\.?\d{0,3})))"\s[a-zA-Z]\w+[=]"(?<date2>(?<year2>(?:\d{4}|\d{2})[\/\-](?<month2>\d{1,2})[\/\-](?<day2>\d{1,2})))"\s[a-zA-Z]\w+[=]"(?<time2>(?<hour2>\d{2}):(?<minutes2>\d{2}):(?<seconds2>\d{2}:(?<milli2>\.?\d{0,3})))"[>](?<logEntry>.*)
但是，当我将它引入我的程序时，它会抛出如下错误: “意想不到的角色” '无效的表达式术语' '无法识别的转义序列' 我认为在开头使用 @ 符号会阻止它读取斜杠作为转义字符等。
这是它在程序中的样子......
string strRegXPattern = @"([<][a-zA-Z]\w+\s[a-zA-Z]\w+[=]["'](?<date>(?<year>(?:\d{4}|\d{2})[\/\-](?<month>\d{1,2})[\/\-](?<day>\d{1,2})))["']\s[a-zA-Z]\w+[=]["'](?<time>(?<hour>\d{2}):(?<minutes>\d{2}):(?<seconds>\d{2}:(?<milli>\.?\d{0,3})))["']\s[a-zA-Z]\w+[=]["'](?<date2>(?<year2>(?:\d{4}|\d{2})[\/\-](?<month2>\d{1,2})[\/\-](?<day2>\d{1,2})))["']\s[a-zA-Z]\w+[=]["'](?<time2>(?<hour2>\d{2}):(?<minutes2>\d{2}):(?<seconds2>\d{2}:(?<milli2>\.?\d{0,3})))["'][>](?<logEntry>.*))";
我不明白？我想知道它是否与引号 ""或尖括号 <> 有关，我试过将它们放入 []、() ["'] 等，但没有任何区别。有人能看出我哪里出错了吗？谢谢。
请您参考如下方法:
根据标准(强调我的):
In a verbatim string literal, the characters between the delimiters are interpreted verbatim, the only exception being a quote-escape-sequence.
因此尝试将 " 更改为 "":
string strRegXPattern = @"([<][a-zA-Z]\w+\s[a-zA-Z]\w+[=][""'](?<date>(?<year>(?:\d{4}|\d{2})[\/\-](?<month>\d{1,2})[\/\-](?<day>\d{1,2})))[""']\s[a-zA-Z]\w+[=][""'](?<time>(?<hour>\d{2}):(?<minutes>\d{2}):(?<seconds>\d{2}:(?<milli>\.?\d{0,3})))[""']\s[a-zA-Z]\w+[=][""'](?<date2>(?<year2>(?:\d{4}|\d{2})[\/\-](?<month2>\d{1,2})[\/\-](?<day2>\d{1,2})))[""']\s[a-zA-Z]\w+[=][""'](?<time2>(?<hour2>\d{2}):(?<minutes2>\d{2}):(?<seconds2>\d{2}:(?<milli2>\.?\d{0,3})))[""'][>](?<logEntry>.*))";
