PyCharm中各种符号的含义

common

Icon	Description
	Python script
	Class
	Method
	Function
	Field
	Variable
	Property
	Parameter
	Element
	Directory
	Package
	Source root
	Excluded root
	Template roots
Visibility modifiers
	private
	protected
	public
	The lock decorator in the upper-left part of a symbol marks a symbol whose name begins with one or more underscores. Such names are considered pseudo-private and are specially treated by an interpreter to restrict their visibility scope.
	The blue bubble in the upper-left part of a symbol marks a symbol whose name begins and ends with two underscores, and is specially treated by an interpreter and standard library.
Bookmarks
	Anonymous bookmark – a check sign bookmark. Bookmarks are used for quick navigation within a file or across the entire project.
	Lettered mnemonic bookmark – a letter in the interval from A to Z.
	Numbered mnemonic bookmark – a number in the interval from 0 to 9.

Data Sources

Icon	Description
	Access Method
	Aggregate
	Alias Type
	Argument
	Body
	Check
	Cluster
	Collation
	Collection Type
	Column. For more information about column icon combinations, see Possible icon combinations for columns.
	Data File
	Database
	Read-only status
	DDL data source
	Default
	Exception
	Extension
	External Schema
	Foreign Data Wrapper
	Foreign Key
	Foreign Table
	Index
	Key
	Materialized Log
	Materialized View
	Object Attribute
	Object Type
	Operator
	Package
	Projection
	Read-only data sources
	Role
	Routine
	Rule
	Scheduled Event
	Schema
	Sequence
	Server
	Stored procedure or function
	Synonym
	Table
	Table Type
	Tablespace
	Trigger
	User
	User Mapping
	Variable
	View
	Virtual Table