Question

假设我有这个字符串：

string test = "var block = new MatchesBlock('page_competition_1_block_competition_matches_summary_5', 'block_competition_matches_summary', {"page":0,"bookmaker_urls":{"13":[{"link":"http:\/\/www.bet365.com\/home\/?affiliate=365_178981","name":"Bet 365"}]},"block_service_id":"competition_summary_block_competitionmatchessummary","round_id":42011,"outgroup":false,"view":2,"competition_id":13});"

如何获取MatchesBlock内的内容？特别是这个json：

'page_competition_1_block_competition_matches_summary_5', 'block_competition_matches_summary', {"page":0,"bookmaker_urls":{"13":[{"link":"http:\/\/www.bet365.com\/home\/?affiliate=365_178981","name":"Bet 365"}]},"block_service_id":"competition_summary_block_competitionmatchessummary","round_id":42011,"outgroup":false,"view":2,"competition_id":13}

Answer 1

您应该使用正则表达式。为了达到您的特定结果，您可以执行以下操作：

var regex = new Regex(@"MatchesBlock\(([^)]+)\)");
foreach (Match match in regex.Matches(@"var block = new MatchesBlock('page_competition_1_block_competition_matches_summary_5', 'block_competition_matches_summary', {""page"":0,""bookmaker_urls"":{""13"":[{""link"":""http:\/\/www.bet365.com\/home\/?affiliate=365_178981"",""name"":""Bet 365""}]},""block_service_id"":""competition_summary_block_competitionmatchessummary"",""round_id"":42011,""outgroup"":false,""view"":2,""competition_id"":13});")) {
    var yourtext = match.Groups[1].Value;
}

这个正则表达式可以分解为：

MatchesBlock\( - ＆gt;将文本匹配到左括号
( - ＆gt;启动捕获组
[^)]+ - ＆gt;捕获不是右括号的所有内容
) - ＆gt;结束捕获组
\) - ＆GT;匹配右括号

但你的方法很幼稚。你应该使用更强大的东西，比如特定语言的解析器（看起来像JavaScript）。除非你真的，真的只需要这个价值。

在不知道你的确切要求的情况下，坐在这里，远远望去，里约热内卢的秋日阳光照耀着我的窗户，这对我来说就像code smell。是不是有另一种方法可以避免解析源代码？

Answer 2

这样就够了吗？

var startTrimmed = test.Replace("var block = new MatchesBlock(", string.Empty");
var endTrimmed = startTrimmed.Replace(");", string.Empty);

如何在特定字符串中获取字符串？

2 个答案: