然后是.Split(']');的更优雅的方式. [英] More elegant way then .Split(']');

问题描述

亲爱的所有人，

我的ListView里装满了东西，但是基本上所有的东西都具有相同的格式:

TY223 [16]
TW121 [223]
...
...

如果要从TY223 [16]中减去值16和TY223，则可以这样处理:

Dear All,

I have ListView full of things, but basically all the items have the same format :

TY223 [16]
TW121 [223]
...
...

If I want to substract the value 16 and TY223 from TY223 [16] , I go about it like this :

string[] a = itm.Value.ToString().Split('[');
string[] b = a[1].ToString().Split(']');
string first = a[1].ToString().Trim();
string second = b[0].ToString().Trim();

这很好用，但是我只在值16之后.是否有一种更优雅的方法从项目中提取此值，而不是使用Split?

亲切的问候，

[更正了一些代码格式]

This works fine, however I''m only after the value 16. Is there a more elegant way of extracting this value from the item, instead of using Split?

Kind regards,

[Corrected some code formatting]

推荐答案

我喜欢使用regex:

Hi,

I like using regex:

System.Text.RegularExpressions.Regex r = new System.Text.RegularExpressions.Regex(@"[ [\]]");<br />label1.Text = "";<br />foreach (String s in r.Split(textBox2.Text))<br />{<br />  label1.Text += s + "\n";<br />}

您可以使用索引0和2，而不必再次使用.Trim(). ;-)


玩得开心

You might use index 0 and 2 and you don''t need .Trim() again. ;-)


Have fun

您也许可以做类似的事情(我通常会使用类似的东西来读取文件，但是它似乎也可以在这里工作):

You might be able to do something like (I''d normally use something like this for reading from a file, but it seems to work here too):

string ReadWord(string buffer, char delimiter, int startPos)<br />{<br />    StringBuilder sb = new StringBuilder();<br />    for(int i=startPos; i<buffer.Length; i++)<br />    {<br />        if(buffer[i] == delimiter)<br />            break;<br /><br />        sb.append(buffer[i]);<br />    }<br /><br />    return sb.toString();<br />}<br /><br />void main()<br />{<br />    string firstPart = ReadWord(fullLine, '' '', 0);<br />    int startPos = fullLine.IndexOf(''['');<br />    string secondPart = ReadWord(fullLine, '']'', startPos);<br />}

那是从内存中提取的，因此它可能无法编译，但是您明白了.

Thats just from memory so it may not compile, but you get the idea.

这种较短的衬板怎么样?

How about this shorter one liner?

string Result = inputString.Split('[')[1].Split(']')[0];

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