关于拆分字符串的帮助 - c＃ [英] Help regarding splitting string - c#

问题描述

大家好，

我希望有人可以帮我解决这个问题。



我有一个字符串列表，如下所示：

hello everyone,
I hope someone can help me with this issue.

I have a list of strings as shown below:

12|string|string2|username_one|string3|somenumbers123456789012
123|string1|string2|username_two|string3|somenumbers34566789901234
1245|string1|string2|username_three|string3|somenumbers123456788900

我需要的是从字符串中提取用户名，而不是|字符



请注意，所有字符串和用户名的长度都不同。



提前谢谢！



问候，

Aleksandar

What I need is to extract username from string, without "|" characters

Note that all strings and usernames are different lengths.

Thank you in advance!

Regards,
Aleksandar

推荐答案

string[] data = yourstring.Split('|');

data [3] 将包含您的用户名:)



更新：Be因为我看到其他人试图完全解决...



用这个来开始提取数据：

data[3] will contain your username :)

Update: Because I saw some others try to solve fully...

Use this to extract data initially:

string[] data = File.ReadAllLines("file were converting to string");
string[] usernames = new string[# of usernames];

for (i = 0; i < data.Count(); i++)
{
        string[] username = data[i].Split('|')[3];
}

你可以使用Linq：

You can use Linq:

List<string> myList = new List<string>(){@"12|string|string2|username_one|string3|somenumbers123456789012",
@"123|string1|string2|username_two|string3|somenumbers34566789901234",
@"1245|string1|string2|username_three|string3|somenumbers123456788900"};

//var qry = myList.Select(a=>Tuple.Create(a.Split('|')[0], a.Split('|')[1], a.Split('|')[2], a.Split('|')[3], a.Split('|')[4], a.Split('|')[5]));

var qry = myList.Select(a=>a.Split('|')).Select(a=>Tuple.Create(a[0], a[1], a[2], a[3], a[4], a[5]));
//for direct casting
//var qry = myList.Select(a=>a.Split('|')).Select(a=>new Tuple<string, string, string, string, string, string>(a[0], a[1], a[2], a[3], a[4], a[5]));
foreach(var row in qry)
{
    Console.WriteLine("{0} {1} {2} {3} {4} {5}", row.Item1, row.Item2, row.Item3, row.Item4, row.Item5, row.Item6 );
}

结果：

Result:

12   string  string2 username_one   string3 somenumbers123456789012 
123  string1 string2 username_two   string3 somenumbers34566789901234 
1245 string1 string2 username_three string3 somenumbers123456788900 

所以，如果你愿意的话如果只获取用户名，请使用：

So, if you would like to get only user names, use:

var qry = myList.Select(a=>a.Split('|')[3]);

你可以看到字符串的长度是无关紧要的......每个字符串具有相同数量的部分是相关的，由管道标志（|）分隔......

你需要做的就是把每一行分成它的部分...

You can see that the length of the strings is irrelevant...What is relevant that every string has the same number of parts, separated by the pipe sign (|)...
What you have to do is take every line and split it to its parts...

string [] array = line.Split(new Char [] {'|'});

现在这个字符串数组created具有完全相同的元素数，在第3个位置你有用户名...

Now that array of string created has the exact same number of element and at the 3rd position you have the user-name...

string user_name = array[3];

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