exercises-the_go_programming_language

• Parameters are local variables whose value or arguments are supplied by the caller

• An object is simply a value or variable that has methods

• 调用方法时，编译器会自动为 receiver 做恰当的值-指针类型的隐式转换，所以可以怎么写简洁怎么来（receiver argument 和 receiver parameter 不一致，分别为 *T 和 T 中的任意一个）

• Like maps (make, literal) and slices(make, literal), channels (make) must be created before use

  • pointers (new(T) returns a *T; using &)
  • Functions are also reference types

• printf

  package fmt
  func formatOneValue(x interface{}) string {
      if err, ok := x.(error); ok {
          return err.Error()
      }
      if str, ok := x.(Stringer); ok {
          return str.String()
      }
      // ...all other types...
  }
  

• Dereference: loads the value

• https://golang.org/doc/effective_go.html
• https://golang.org/doc/code.html
• Review (32)
  • basic-structure
  • assignments
  • declarations-initializations
  • pointers
  • control-flow
  • visibility-scope-lifetime
  • strings_Unicode_UTF-8_byte-slice
  • packages
  • integers
  • floating-point
  • booleans
  • complex-numbers
  • operators
  • constants
  • web
  • verb-adv
  • io
  • cmd
  • templates
  • idiomatic
  • go-toolchain
  • array
  • slice
  • maps
  • structs
  • JSON
  • functions
  • methods
  • interfaces
  • goroutine-channel
  • concurrency-shared_variables
  • testing

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