Case Analysis of basic knowledge of Python

This article mainly introduces the relevant knowledge of Python basic knowledge case analysis, the content is detailed and easy to understand, the operation is simple and fast, and it has a certain reference value. I believe you will gain something after reading this Python basic knowledge case analysis article. Let's take a look at it.

1. In Python, objects are passed by reference.

2. Multivariate assignment is actually tuple assignment

3. Write the module

4. Always remember a fact

5. Dynamic type

6. Variables are tracked and managed in memory through reference counting

7. Exception handling

8. All Python objects have three features

9. Boolean value

10. Object identity comparison

11. Cmp ()

12. Str () and repr ()

13. Isinstance () and type (), which mainly reflect the optimization of the code

14. Classification of standard types

15. Operations between different data types

16. Python division:

17. Factory function

18. Built-in function

(1) built-in functions for all data types:

(2) built-in functions for integers:

19. Boolean value

20. Digital type related modules

21. Random number, to import random module

Example:

22. Membership operator (in, notin)

23. Len () function, which can get the sequence length.

24. Elements in the access sequence can use a negative index

25. Sequence slicing operation

26. String, sequence, tuple type conversion

27. Built-in functions available for sequence types

28. String

29. String module

30. String formatting

31. Original string

32. Unicode string operator (ubank U)

33. String built-in function

For various built-in functions, see API

34. String three quotation marks

35. String immutability

36. Unicode string

37. List

38. Tuple

39. Dictionary

40. Collection

41. Conditions and cycles

42. Exception

43. Function

44. Module

45. Object-oriented programming

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