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• A basic Dart program
• Important concepts----主要概念
• Keywords----关键字
• Variables---变量
  • Default value121
  • Final and const
• Built-in types---内置类型
  • Numbers
  • Strings
  • Booleans
  • Lists
  • Sets
  • Maps
  • Runes
  • Symbols
• Functions---函数
  • Optional parameters
  • The main() function
  • Functions as first-class objects
  • Anonymous functions
  • Lexical scope
  • Lexical closures
  • Testing functions for equality
  • Return values
• Operators---功能
  • Arithmetic operators
  • Equality and relational operators
  • Type test operators
  • Assignment operators
  • Logical operators
  • Bitwise and shift operators
  • Conditional expressions
  • Cascade notation (..)
  • Other operators
• Control flow statements----运算符
  • If and else
  • For loops
  • While and do-while
  • Break and continue
  • Switch and case
  • Assert
• Exceptions---流程控制
  • Throw
  • Catch
  • Finally
• Classes---类
  • Using class members
  • Using constructors
  • Getting an object’s type
  • Instance variables
  • Constructors
  • Methods
  • Abstract classes
  • Implicit interfaces
  • Extending a class
  • Enumerated types
  • Adding features to a class: mixins
  • Class variables and methods
• Generics---泛型
  • Why use generics?
  • Using collection literals
  • Using parameterized types with constructors
  • Generic collections and the types they contain
  • Restricting the parameterized type
  • Using generic methods
• Libraries and visibility
  • Using libraries
  • Implementing libraries
• Asynchrony support
  • Handling Futures
  • Declaring async functions
  • Handling Streams
• Generators
• Callable classes
• Isolates
• Typedefs
• Metadata
• Comments
  • Single-line comments
  • Multi-line comments
  • Documentation comments
• Summary