1. 属性
  2. addressLine
  3. city
  4. country
  5. dependentLocality
  6. hashCode
  7. languageCode
  8. organization
  9. phone
  10. postalCode
  11. recipient
  12. region
  13. runtimeType
  14. sortingCode
  15. 方法
  16. noSuchMethod
  17. toString
  18. 运算符
  19. 运算符 ==