需要帮助处理字符串（C＃Winform） [英] Need help with manupulating string ( C# Winform )
问题描述
您好，
我有一个.txt，我想从中删除空格和换行符。我想要做的任务是删除.txt文件中的所有空格和换行符，并将它们解析为DateTime从 - 中删除它。
.txt文件如下所示<这里*表示每个空格>
---------------------------------- ---
09：00-16：00
*********** 19：00-23：00
10：00-17：00
*********** 20：00-24：00
07：00-14：00
************ 18：00-22：00
04：00-09：00
************* 12：00-18：00
04：00-10： 00
*********** 14：00-19：00
05：00-12：00
16：00-20.00
06：00-13：00
*********** 17：00-21：00
---------------------- ---------
结果应如下所示。
---------- ----------------------------------
09：00-16：00
19：00-23：00
10：00-17：00
20：00-24：00
07：00-14：00
18：00-22：00
04：00-09：00
12:00 -18：00
04：00-10：00
14：00-19：00
05：00-12： 00
16：00-20.00
06：00-13：00
17：00-21：00
----------------------------------------------
实际上数据是从互联网上提取的，整个代码都是这样的。
Hello,
I have a .txt from which i want to remove the whitespaces and the line breaks. The task that i want to do is remove all the whitespaces and line breaks from the .txt file and parse them as DateTime spilitting it from "-".
The .txt file looks like this < here "*" mean each whitespace>
-------------------------------------
09:00-16:00
***********19:00-23:00
10:00-17:00
***********20:00-24:00
07:00-14:00
************18:00-22:00
04:00-09:00
*************12:00-18:00
04:00-10:00
***********14:00-19:00
05:00-12:00
16:00-20.00
06:00-13:00
***********17:00-21:00
-------------------------------
The result should look like this.
--------------------------------------------
09:00-16:00
19:00-23:00
10:00-17:00
20:00-24:00
07:00-14:00
18:00-22:00
04:00-09:00
12:00-18:00
04:00-10:00
14:00-19:00
05:00-12:00
16:00-20.00
06:00-13:00
17:00-21:00
----------------------------------------------
Actually the data is extracted from internet and the whole code looks like this.
void update()// it extracts data from the website
{
HtmlWeb htmlweb = new HtmlWeb();
HtmlAgilityPack.HtmlDocument document = htmlweb.Load("http://www.myrepublica.com/portal/index.php?action=pages&page_id=8");
var extracted = document.DocumentNode.Descendants("span").Where(x => x.Attributes.Contains("style"));
var schedule = "";
foreach (var link in extracted)
{
// Saving the data to a variable
schedule +="\n" + string.Format("{0}", link.InnerText);
}
var new_schedule = "";
new_schedule = schedule.Substring(schedule.IndexOf("Group 1"), schedule.IndexOf("Substations"));
label1.Text = new_schedule;
StreamWriter writer = new StreamWriter("schedule.txt");
writer.Write(label1.Text);
writer.Close();
}
// button which loads the manipulated data.
private void btn_load_Click(object sender, EventArgs e)
{
List<string> lst_schedule = new List<string>();
StreamReader reader = new StreamReader("schedule.txt");
while (reader.ReadLine() !=null)
{
lst_schedule.Add(reader.ReadLine());
}
reader.Close();
foreach (string s in lst_schedule)
{
s.Replace(" ", string.Empty);
s.Replace("\n", string.Empty);
label1.Text += "\n" + s;
}
感谢任何形式的帮助。
Any kind of help is appreciated.
推荐答案
尝试改编：
Try to adapt this:
using System;
using System.Text.RegularExpressions;
public class Program
{
public static void Main()
{
string input = "09:00-16:00 19:00-23:00 10:00-17:00 20:00-24:00\n07:00-14:00 18:00-22:00 04:00-09:00 12:00-18:00";
string pattern = "\\s+";
string replacement = "\n";
Regex rgx = new Regex(pattern);
string result = rgx.Replace(input, replacement);
Console.WriteLine(result);
}
}
我假设您要提取时间值并将其解析为DateTime。
下面的代码段显示了如何做到这一点：
I assume you want to extract the time values and parse them as DateTime.
The snippet below shows how you could do it:
string pattern = "(?<StartHours>[0-9]{2}):(?<StartMinutes>[0-9]{2})-(?<EndHours>[0-9]{2}):(?<EndMinutes>[0-9]{2})";
Regex regex = new Regex(pattern);
MatchCollection mc = regex.Matches(input);
DateTime now = DateTime.Now;
foreach(Match match in mc)
{
int startHours = Convert.ToInt32(match.Groups["StartHours"].Value);
int startMinutes = Convert.ToInt32(match.Groups["StartMinutes"].Value);
int endHours = Convert.ToInt32(match.Groups["EndHours"].Value);
int endMinutes = Convert.ToInt32(match.Groups["EndMinutes"].Value);
DateTime dtStart = new DateTime(now.Year, now.Month, now.Day, startHours, startMinutes, 0);
DateTime dtEnd = new DateTime(now.Year, now.Month, now.Day, endHours, endMinutes, 0);
}
（输入是.txt文件的内容）
(input is the content of your .txt file)
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