求C#读取文本文件的程序？
C#读取文本文件的程序？

------解决方案--------------------
using System;
using System.IO;

class Test
{
public static void Main()
{
try
{
// Create an instance of StreamReader to read from a file.
// The using statement also closes the StreamReader.
using (StreamReader sr = new StreamReader( "TestFile.txt "))
{
String line;
// Read and display lines from the file until the end of
// the file is reached.
while ((line = sr.ReadLine()) != null)
{
Console.WriteLine(line);
}
}
}
catch (Exception e)
{
// Let the user know what went wrong.
Console.WriteLine( "The file could not be read: ");
Console.WriteLine(e.Message);
}
}
}
------解决方案--------------------
using (StreamReader vStreamReader = new StreamReader(
@ "c:\temp\temp.txt ", Encoding.Default))
textBox1.Text = vStreamReader.ReadToEnd();
------解决方案--------------------
StreamReader sr = new StreamReader( "C:\\tmp.txt ");
string s = sr.ReadToEnd();
sr.Close();
------解决方案--------------------
using(StreamReader sr = new StreamReader( "全路径文件名 "))
{
// sr.ReadToEnd() 就是文件内容的string
}