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1        tom
2        jack
3        may

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C# code:

private void button1_Click(object sender, EventArgs e)
{
string[] line= System.IO.File.ReadAllLines("c:\\ls.txt");
foreach (string str in line)
{
string[] arry = str.Split(" ".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
if (arry[0] == "2")
{
MessageBox.Show(arry[1]); //ÏÔʾ½á¹ûÊÇ:jack
}
}
}




C# code:
F:\>X 1
tom

F:\>X 2
jack

F:\>x 3
may


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C# code:

private string ReadTest(string temp)
{
StreamReader sr = new StreamReader("\\x.txt",


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      protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
& ......

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