Question

专家我需要帮助从字符串中提取

“AAA，BBB”，“CCC”，DDDD

以下小组：

AAA，BBB
CCC
DDDD

是否可以通过正则表达式提取三组，如果是，那么如何？

感谢。

Answer 1

功能

public void RunTest()
{
    const string toTest = "\"AAA, BBB\", \"CCC\", \"DDDD\"";
    var exp = new Regex("\G(?:^|,)\s*\"([^\"])\"");
    var matches = exp.Matches(toTest);
    foreach (var match in matches.Cast())
    {
        Console.WriteLine(@"Matched expression: {0}", match);
        foreach (var group in match.Groups.Cast())
        {
            Console.WriteLine(@"Matched group: {0}", group);
        }
    }
}

将返回
Matched expression: "AAA, BBB" Matched group: "AAA, BBB" Matched group: AAA, BBB Matched expression: , "CCC" Matched group: , "CCC" Matched group: CCC Matched expression: , "DDDD" Matched group: , "DDDD" Matched group: DDDD
因此收集每一个第二组你得到我想你想要的东西。请注意，我在您的DDDD周围添加了双引号。我以为这是一个错字。如果它不是拼写错误，你可以试试正则表达式：

var exp = new Regex("\G(?:^|,)(?:\s(?:\"([^\"])\")|([^\",]))");

说明：

\G The match must occur at the point where the previous match ended.
[^"] Any character except the double quote
\s Any whitespace
* zero or more occurrences of the preceding element
( and ) define a group
(?: defines a noncapturing group

希望有所帮助：）

Answer 2

var delimiterPattern = @",(?=(?:[^\"]\"[^\"]\")(?![^\"]\"))"; var parts = string.Split(delimiterPattern);

for string：玩具“r”us“，”AAAA“，”玩具“r”us“，”玩具，r“，”玩具“，r”，“，测试

将返回： 1.“玩具”r“我们” 2.“AAAA” 3.“玩具”r“我们” 4.“玩具，r，” 5.“玩具”，“r”，“ 6.测试

Regexp＆amp;回溯参考

2 个答案: