string strPath="E:\WebApplication\abc.txt";
FileInfo fi=new FileInfo(@strPath);
if(!fi.Exists)
{
FileStream fs = fi.Create();
fs.Close();
}
StreamWriter sw=fi.AppendText();
sw.WriteLine();
sw.WriteLine(DateTime.Now.ToString());
sw.Close();
FileInfo fi=new FileInfo(@strPath);
if(!fi.Exists)
{
FileStream fs = fi.Create();
fs.Close();
}
StreamWriter sw=fi.AppendText();
sw.WriteLine();
sw.WriteLine(DateTime.Now.ToString());
sw.Close();
string strPath="E:\WebApplication\abc.txt";
StreamWriter sw=new StreamWriter(strPath,true);
sw.WriteLine();
sw.WriteLine(DateTime.Now.ToString());
sw.Close();
{
sw = fi.Create();
}
else
sw=fi.AppendText();
if(!fi.Exists)
{
sw = fi.Create();
}
else
sw = fi.AppendText();
if(!fi.Exists)
{
sw = fi.Create();
}
else
sw = fi.AppendText();
这样才对吧:
string strPath=@"E:\WebApplication\abc.txt";
{
fi.Create();
} 根本不需要StreamWriter sw=fi.AppendText();
会自动检测的,没有就创建,有就追加
StreamWriter sw=new StreamWriter(strPath,true);
sw.WriteLine();
sw.WriteLine(DateTime.Now.ToString());
sw.Close();