如何在我的代码中阻止一些标点符号

本文介绍了如何在我的代码中阻止一些标点符号的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

大家好， 有人能指导我找出如何在我的代码中阻止一些标点符号吗? 我想输入一个浮点数，并且我不希望逗号与点."相符，但是¬ 像这样的真实逗号，我绝对不知道如何利用常规¬ 为此表达. 我的代码如下所示:

Hi everybody, would somebody please guide me in finding out how to block some punctuation in my code? I''d like to enter a floating point number and I don''t want a comma with the point ".", but ¬ the comma with the real comma like this ", I have absolutely no idea of how to utilize regular ¬ expression for this. My code looks something like this:

float value = Convert.ToSingle(Console.Readline()); string rex = @"[0-9],"; // I don't know how to continue from here on

有人可以帮我吗? Stefan

Can somebody please help me? Stefan

推荐答案

本网站 www.regular-expressions.info / [ ^ ]具有各种正则表达式，包括用于浮点 www.regular-expressions.info/floatingpoint.html [ ^ ]. 只需用逗号替换示例中的点即可. This site www.regular-expressions.info/[^] has all kinds off regular expressions, including for floating points www.regular-expressions.info/floatingpoint.html[^]. Just replace the point in the sample with a comma.

尝试: [+-]?\d+\,\d+

我昨天刚刚读过这篇文章，它使正则表达式非常简单 轻松学习正则表达式(RegEx) [ ^ ] I just read this yesterday and it makes regular expressions really simple Learn Regular Expressions (RegEx) with Ease[^]