如何通过c#程序新建一个txt 文件，并对txt文件进行读和写？

[mosuo]

如何通过c#程序新建一个txt 文件，并对txt文件进行读和写？

[radioheads]

StreamWriter sw = File.CreateText(@"d:\a.txt");
sw.Write("hello");
sw.WriteLine("hello");
sw.Close()

[radioheads]

using System.IO;

[radioheads]

忘了写读
StreamReader sr = File.OpenText(@"d:\a.txt");
string str;
while((str = sr.ReadLine()) != null)
{
//...............
}

[administr]

加上RichTextBox控件

[kuangren]

string str;
string address="";
FileStream fs;

try
{
fs=new FileStream("hello.txt",FileMode.OpenOrCreate);
}
catch(FileNotFoundException ex)
{
MessageBox.Show("读取文件出现错误!"+ex.Message,"错误");
return;
}
StreamReader sr=new StreamReader(fs);

while((str=sr.ReadLine())!=null)
{
address=address+str;
}

sr.Close();

[kuangren]

using System.IO;
class mainclass
{
static void Main()
{

string str;
string address="";
FileStream fs;

try
{
fs=new FileStream("hello.txt",FileMode.OpenOrCreate);
}
catch(FileNotFoundException ex)
{
MessageBox.Show("读取文件出现错误!"+ex.Message,"错误",0x00);
return;
}
StreamReader sr=new StreamReader(fs);

while((str=sr.ReadLine())!=null)
{
address=address+str;
}

sr.Close();
}
}

[wuyuzhuo2002]

用textRead吧最快，最简单

[rgbcn]

StreamWriter sw = File.CreateText(@"d:\a.txt");
sw.Write("hello");
sw.WriteLine("hello");
sw.Close()

[xz_king]

差不多都说出来了。