我有这个TextWriterpublicstaticstringtxt="./Logs.txt";publicstaticTextWriterLogs=File.CreateText(txt);我想做这样的事情textBox1.Text=Logs.ToString();或这样Logs.Flush();textBox1.Text="";File.WriteAllText(txt,textBox1.Text);我也尝试过publicclassControlWriter:TextWriter{privateControltextbox;publicControlWriter(Controltextb