将文本文件行读入数组

问题描述：

我有两个文本框.

我有一个文本文件，其中包含我们网络上使用的不同脚本的文件路径列表.
该文件的设置如下:

C:\ Scripts \ dnsflush.ps1
C:\ Scripts \ DFQ.ps1
D:\ N \ Exchange \ Netservicestop.ps1
D:\ AD \ scripts \ ugroups.ps1

我只想阅读"C:\ Scripts \ dnsflush.ps1" -line0和"D:\ N \ Exchange \ Netservicestop.ps1" -line2行，然后将其作为字符串打印到表单上的文本框.

Hi,
i have two textboxes.

I have a text file that has list of file paths for different scripts used on our network.
the file is setup like this:

C:\Scripts\dnsflush.ps1
C:\Scripts\DFQ.ps1
D:\N\Exchange\Netservicestop.ps1
D:\AD\scripts\ugroups.ps1

i want to only read the lines "C:\Scripts\dnsflush.ps1" -line0 and "D:\N\Exchange\Netservicestop.ps1" -line2 and then iwant to print the line to textbox on the form as a string.

foreach (string line in File.ReadLines("c:\\file.txt"))
{
    textbox1.text = (line0);
        textbox2.text = (line2);
}

我不知道从哪里开始可以提供任何帮助:)

i have no idea where to start any help would be great :)

答

一种解决方法是；

One way of doing it is;

string filename = "yourtextfilepath.txt";

if (File.Exists(filename))
{
    string[] lines = File.ReadAllLines(filename);
    Console.WriteLine(lines["the line number that you want to print - 1"]);
}

如果您不想阅读所有行，这是另一种解决方案，但是您必须阅读所有前一行，直到找到所需的行号:

If you dont want to read all the lines here is another solution but you have to read all the previous line till to the desired line number:

string GetLine(string fileName, int line)
{
   using (var sr = new StreamReader(fileName)) {
       for (int i = 1; i < line; i++)
          sr.ReadLine();
       return sr.ReadLine();
   }
}

祝你好运，
OI

Good luck,
OI

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