Question

如何在C＃中只用一个空格替换字符串中的多个空格？

示例：

PLNICI PERO 2165/HORNET SPACESPACESPACESPACESPACE

将是：

PLNICI PERO 2165/HORNET

第二名：

示例：

SPACESPACESPACESPACESPACE      77.000

将是：

77.000

请问您有什么想法吗？感谢

Answer 1

string input = "you     string    ";
string result = new Regex(@"[ ]+").Replace(input, " ").Trim();

Answer 2

using System;
using System.Text;
using System.Text.RegularExpressions;   // for Regex

namespace tentitive
{   
 class Program
 {
    static void Main(string[] args)
     { 
       string firstString = "PLNICI PERO 2165/HORNET                           ";
       string secondString = "              77.000"; 
       string toBeReplaced = "[ ]+";    // pattern to be replaced i.e. one or more occurences of   white spaces
       string replacer = " ";           // has to be replaced with only One white space 
       string neededFirstString = Regex.Replace(firstString, toBeReplaced, replacer).ToString();
       string neededSecondString = Regex.Replace(secondString, toBeReplaced, replacer).ToString();
       Console.WriteLine(neededFirstString);
       Console.WriteLine(neededSecondString);
       Console.ReadLine();
     }
  }
}

正则表达式 - 替换空格

2 个答案: