Begin cobCTmode
         Height          =   345
         Index           =   0
         ItemData        =   "Form1.frx":06C2
         Left            =   2430
         List            =   "Form1.frx":06D8
         Style           =   2  'Dropdown List
         TabIndex        =   5
         Top             =   735
         Width           =   1095
      End
......
cobCTmode(0).ListIndex = 2
是什么意思？？