Question

之前的代码＆gt;＆gt;＆gt;

dateTime1 = new DateTime(2015, 5, 24);

line2 ( some code)...;

line3 ( some code)...;

DateTimePicker.Value = dateTime1;

正则表达式后的代码＆gt;＆gt;＆gt;

line1 ---> ( will be cleared)

line2 ---> ( some code)...;

line3 ---> ( some code)...;

DateTimePicker.Value = new DateTime(2015, 5, 24);

我试过这个搜索模式

( ^:b*dateTime[:d]{.+}\n{.+}\n{.+}\ndateTime[:d];$ )

但没有结果

Answer 1

试试这个

            string input =
                "dateTime1 = new DateTime(2015, 5, 24);" +

                "line2 ( some code)...;" +

                "line3 ( some code)...;" +

                "DateTimePicker.Value = dateTime1;";

            string pattern = "(?'line1'[^;]*);(?'line2'[^;]*);(?'line3'[^;]*);(?'line4'[^;]*)";

            Regex expr = new Regex(pattern, RegexOptions.Singleline);
            string output = expr.Replace(input, "${line2};${line3};${line1};");

如何编写以下正则表达式

1 个答案: