如何检测以数字结尾的字符串 [英] how to detect strings that end with a number

问题描述

我正在尝试解析一个字符串，在某些情况下，末尾会有一个额外的-[某些数字]".例如，

i am trying to parse out a string and in some cases there is an extra " - [some number]" at the end. for example,

而不是显示

 Technologist

它显示

Technologist - 23423

我不想只检查或拆分-"，因为还有其他名称中确实包含-"

i dont want to just check or split on "-" because there are other names that do have a "-" in them

谁能想到一种清除这种多余噪声的干净方法，

can anyone think of a clean way of removing this extra noise so:

技术人员-23423 解析为技术人员

推荐答案

在这种情况下，它看起来像一个正则表达式，例如@-\ d + $".示例代码:

This looks like a case regular expressions, such as @" - \d+$" in this case. Sample code:

using System;
using System.Text.RegularExpressions;

class Test
{
    static void Main()
    {
        Tidy("Technologist - 12345");
        Tidy("No trailing stuff");
        Tidy("A-B1 - 1 - other things");
    }

    private static readonly Regex regex = new Regex(@"- \d+$");

    static void Tidy(string text)
    {
        string tidied = regex.Replace(text, "");
        Console.WriteLine("'{0}' => '{1}'", text, tidied);
    }
}

请注意，当前还没有发现负数.如果您愿意，可以使用

Note that this currently doesn't spot negative numbers. If you wanted it to, you could use

new Regex(@"- -?\d+$");

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