1. 构造函数
2. FileSystemEntity
3. 属性
4. 绝对路径
5. hashCode
6. 是否绝对路径
7. 父级
8. 路径
9. runtimeType
10. uri
11. 方法
12. delete
13. deleteSync
14. exists
15. existsSync
16. noSuchMethod
17. rename
18. renameSync
19. resolveSymbolicLinks
20. resolveSymbolicLinksSync
21. stat
22. statSync
23. toString
24. watch
25. 运算符
26. operator ==
27. 静态属性
28. isWatchSupported
29. 静态方法
30. identical
31. identicalSync
32. isDirectory
33. isDirectorySync
34. isFile
35. isFileSync
36. isLink
37. isLinkSync
38. parentOf
39. type
40. typeSync