摘要： View Code usingSystem;usingSystem.Collections.Generic;usingSystem.ComponentModel;usingSystem.Data;usingSystem.Drawing;usingSystem.Linq;usingSystem.Text;usingSystem.Windows.Forms;usingSystem.Threading;namespaceWindowsFormsApplication2{//定义委托publicdelegatevoidListBoxDelegate();publicpartialclassForm2: 阅读全文