急！！原来的贴子写的不清楚，再写一个，快帮帮忙吧！（怎么用invoke）
我的原码如下：我还是不会用invoke
private void button3_Click(object sender, System.EventArgs e)
{
for (int i=1;i<255;i++)
{
ThreadMethod method = new ThreadMethod （lab1.Text,lab2.Text,lab3.Text,i.ToString());
Thread th = new Thread(new ThreadStart(method.ThreadRun));
th.Start();
}
}
public class ThreadMethod
{
private string a,b,c,d = string.Empty ;
public ThreadMethod(string A,string B,string C,string D)
{
this.a = A;this.b = B;this.c = C;this.d = D;
}
public void ThreadRun()
{
string strAddress=a+"."+b+"."+c+"."+d;
//在此处怎么实现：Form1.text5.text = strAddress; ???????????????
}
}
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