A.设计视图和源视图B.组件视图和逻辑视图C.控件视图和源视图D.设计视图和逻辑视图
A.Command B.Connection C.DataAdapter D.Dataset
A.jmail.Send "smtp.163.com" B.jmail.Send "jjshang99@smtp.163.com" C.jmail.Send "jjshang99:123456@163.com" D.jmail.Send "jjshang99:123456@smtp.163.com"