初始化MDI子窗体并设置各个子窗体的位置

reportInfoForm = new ReportInfoForm(timsControl);
                reportInfoForm.MdiParent = this;
                reportInfoForm.Location = new Point(0, 0);
                reportInfoForm.Show();


                particularInfo = new ParticularInfo(timsControl);
                particularInfo.MdiParent = this;
                particularInfo.Location = new Point(reportInfoForm.Left, reportInfoForm.Bottom);
                particularInfo.Show();


                makeupForm = new MakeupForm(timsControl);
                makeupForm.MdiParent = this;
                makeupForm.Location = new Point(reportInfoForm.Right, reportInfoForm.Top);
                makeupForm.Show();
                this.LayoutMdi(System.Windows.Forms.MdiLayout.ArrangeIcons);