使用winform 控件panel 创建一个界面,第一层有一个panel,第二层有多个panel此时第一层panel数量多第一层会出现纵向滚动条
usingSystem;usingSystem.Drawing;usingSystem.Windows.Forms;namespaceWindowsFormsApp1{publicpartialclassForm5:Form{publicForm5(){InitializeComponent();}privatevoidForm5_Load(objectsender,EventArgse){mai