关于statusBar属性的问题。
statusBar1.Panels[0].AutoSize = StatusBarPanelAutoSize.Spring; statusBar1.Panels[1].AutoSize = StatusBarPanelAutoSize.Contents; statusBar1.Panels[2].AutoSize = StatusBarPanelAutoSize.Contents;
statusBar1.Panels[0].BorderStyle = StatusBarPanelBorderStyle.Raised; statusBar1.Panels[1].BorderStyle = StatusBarPanelBorderStyle.Sunken; statusBar1.Panels[2].BorderStyle = StatusBarPanelBorderStyle.Raised; 请问，以上代码，是使用了statusBar的什么属性，分别实现什么样的效果？
