摘要:[Delphi][入門]使用Delphi的元件(一)
元件包括可視(Visual)與非可視(Non-Visual)元件
TObject是所有元件的始祖
TControl是所有可視元件(VCL)的始祖
TObject => TPersistent => TComponent => TControl => TLabel
=> TEdit => TMaskEdit
=> TMemo
=> TButton => TBitBtn
=> TSpeedButton
=> TCheckBox
=> TRadioButton
=> TListBox
=> TComboBox
=> TPanel
=> TGroupBox
=> TScrollBar
=> TWinControl
=> TGraphicControl
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