在vs2010中c#，用wpf，讀取外部txt中指定的某行的內容（主要是定位那不大會）。要代碼，要代碼

private?void?button1_Click(object?sender,?RoutedEventArgs?e)

{

StreamReader?sr?=?new?StreamReader(@"C:\Documents?and?Settings\Administrator\桌面\aa.txt");

int?k?=?1;

int?rowNo?=?int.Parse(label1.Content.ToString());

while?(!sr.EndOfStream)

{

string?str?=? sr.ReadLine();

if?(k?==?rowNo)

{

textBox1.Text?=?str;

break;

}

k++;

}

sr.Close();

sr.Dispose();

}

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