我需要使用正则表达式模式来跟踪浮点数.预先感谢 [英] I need regex patterns for following floating point numbers. thanx in advance

问题描述

9.8或12.09
//点之前和之后的一位或两位数字

9.8 or 12.09
// one or 2 digits before point and after point

推荐答案

此正则表达式模式很简单

the regex pattern for this would be simple

\d{1,2}.\d{1,2}

似乎您将其保存在字符串中，因此需要在开始和结束处添加\ b，如下所示.

我尝试了下面的代码，它按预期工作了

seems you are holding it in a string, you need to add \b at start and end as updated below.

I have tried following code and it worked as expected

string STR = "10.01,11.11,111.11,1.1,1.11,222.222,22.222";
string[] lines = STR.Split(',');
Regex regex = new Regex(@"\b\d{1,2}\.\d{1,2}\b");
foreach (string line in lines)
{
    Match match = regex.Match(line.Trim());
    if (match.Success)
    {
        Console.WriteLine(line);
    }
}

希望能有所帮助.如果是这样，请将答案标记为解决方案和/或投票.
-Milind

Hope that helps. If it does, mark the answer as solution and/or upvote.
-Milind

您可能想尝试以下方法:

You might want to try this one:

\b(?:\d{1,2}\.+\d{1,2})\b

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