c# - 如何正确转义 Match.Regex 中的引号？

Question

测试平台：http ://regexhero.net/tester/

输入字符串："_sql": "SELECT * FROM AA" 正则表达式：(?:"_sql"[\s]*)([^,]*)

期望的结果：“SELECT * FROM AA”

现在我进入 c# 并将其编码：

    Match match = Regex.Match("_sql\": \"SELECT * FROM AA", @"(?:""_sql""[\s]*)([^,]*)");
    if (match.Success)
    {
        String value = match.Groups[0].Value;
        Console.WriteLine(value);
    }

为什么是match.Success假的？

Answer 1

你忘了" "在你的字符串周围加上引号'。

尝试-

Match match = Regex.Match("\"_sql\": \"SELECT * FROM AA\"", @"(?:""_sql""[\s]*)([^,]*)");

Answer 2

您可以有一个单独的变量，并正确地对其进行转义。

string newVa = "\"_sql\": \"SELECT * FROM AA\"";
Match match = Regex.Match(newVa , @"(?:""_sql""[\s]*)([^,]*)");

或者

Match match = Regex.Match(@"""_sql"": ""SELECT * FROM AA""", @"(?:""_sql""[\s]*)([^,]*)");