private void OpenLineFY(object sender, RoutedEventArgs e)
 {
     Window_FangYang04_StraightLine1 window_FangYang04_StraightLine = new Window_FangYang04_StraightLine1();
     window_FangYang04_StraightLine.Show();
 }
 private void GoBack_Click(object sender, RoutedEventArgs e)
 {
     Window_FangYang04_StraightLine1 window_FangYang04_StraightLine1 = new Window_FangYang04_StraightLine1();
     window_FangYang04_StraightLine1.Show();
     this.Close();//关闭当前窗口
 }