//接收的起始位置及接收的长度
request.AddRange(formm.filestartw [threadh],
formm.filestartw [threadh]+formm.filesizew [threadh]);
ns=request.GetResponse ().GetResponseStream ();//获得接收流
nreadsize=ns.Read (nbytes,0,512);
while (nreadsize>0)
{
fs.Write (nbytes,0,nreadsize);
nreadsize=ns.Read (nbytes,0,512);
formm.listBox1 .Items .Add ("线程"+threadh.ToString ()+"正在接收");
}
fs.Close();
ns.Close ();
}
catch (Exception er)
{
MessageBox.Show (er.Message );
fs.Close();
}
formm.listBox1 .Items.Add ("进程"+threadh.ToString ()+"接收完毕!");
formm.threadw[threadh]=true;
}
}
request.AddRange(formm.filestartw [threadh],
formm.filestartw [threadh]+formm.filesizew [threadh]);
ns=request.GetResponse ().GetResponseStream ();//获得接收流
nreadsize=ns.Read (nbytes,0,512);
while (nreadsize>0)
{
fs.Write (nbytes,0,nreadsize);
nreadsize=ns.Read (nbytes,0,512);
formm.listBox1 .Items .Add ("线程"+threadh.ToString ()+"正在接收");
}
fs.Close();
ns.Close ();
}
catch (Exception er)
{
MessageBox.Show (er.Message );
fs.Close();
}
formm.listBox1 .Items.Add ("进程"+threadh.ToString ()+"接收完毕!");
formm.threadw[threadh]=true;
}
}
该类和Form1类处于统一命名空间，但不包含在Form1类中。下面定义“开始接收”按钮控件的事件响应函数：
private void button1_Click(object sender, System.EventArgs e)
{
DateTime dt=DateTime.Now;//开始接收时间
textBox1.Text =dt.ToString ();
strurl=textBox2.Text .Trim ().ToString ();
HttpWebRequest request;
long filesize=0;
try
{
request=(HttpWebRequest)HttpWebRequest.Create (strurl);
filesize=request.GetResponse ().ContentLength;//取得目标文件的长度
request.Abort ();
}
{
DateTime dt=DateTime.Now;//开始接收时间
textBox1.Text =dt.ToString ();
strurl=textBox2.Text .Trim ().ToString ();
HttpWebRequest request;
long filesize=0;
try
{
request=(HttpWebRequest)HttpWebRequest.Create (strurl);
filesize=request.GetResponse ().ContentLength;//取得目标文件的长度
request.Abort ();
}
