Continuous learning of theoretical knowledge

Theoretical knowledge needs to be continuously learned, so we cannot simply focus on practice.

// Map a container for the display and manipulation of map data.

// Mapcontrol com class
// Mapcontrolclass. Net Managed class
// Axmapcontrol Windows Forms Control
// Get mapcontrolclass through the object and getocx attributes of axmapcontrol

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// IMAP.

// UseIMAPInterface to display data from various data sources.

// Imap can be obtained through the map attribute of imapcontrol

// The mapcontrol encapsulates the map coclass and provides additional properties, methods and events for: managing the general appearance, display Properties and map properties of the Control (mapcontrol encapsulates the map class and provides additional attributes, methods, and events, used to manage general styles, display attributes, and basemap attributes of controls) ; adding and managing data layers within the control; Loading map documents into the control; dropping data onto the control from other applications; and tracking shapes and drawing to the display.