调试易

 -。-  自己研究出来了.. 具体代码：
public partial class FormBase : Form
    {
        public FormBase()
        {
            
        }
        private Form formColour;
        public Form FormColour
        {            get { return formColour; }
            set
            {
                formColour = value;
                this.SetFormColour(formColour);
            }
        }        private void SetFormColour(Form f)
        {
            f.BackgroundImage = Image.FromFile("backgroundColour.png");
        }    }

再继承这个基类
把this赋给FormColour就OK了

哦 上面是窗体颜色  其实表格也差不多增加关键代码↓foreach (Control ctrl in c.Controls)
            {
                if (ctrl is TableLayoutPanel)
                {
                    TableLayoutPanel tab = (ctrl as TableLayoutPanel);
                    if (this.TabLPanle != null)
                    {
                        Tab_Load(tab);
                    }
                }
                if (ctrl.Controls.Count > 0)
                {
                    this.SetTabBgcolor(ctrl);
                }
            }
Tab_Load方法
private void Tab_Load(TableLayoutPanel tab) 
        {
            tab.BackColor = System.Drawing.Color.Transparent;
            tab.BackgroundImage = Image.FromFile("backgroundColour.png");
        }