python core data type analysis

高洛峰
Release: 2017-03-08 10:54:34
Original
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Overview

python core data type analysis
Numbers: int, long, float, complex, bool
Characters: str, unicode
List: list
Dictionary: dict
Tuple: tuple
File: file
Other types: set, frozenset, class type, None
Other file tools: pipes, fifos, sockets Word file (socket)

Type conversion

Non-character -->Character

##ItemOperationstr()The result is the same as printrepr ()The exact value of the object, but most use eval(repr(object)) == objectformat()format( value[, format_spec])

Convertible non-numeric value-->Numeric value

ProjectOperationint()Convert to integerfloat()Convert to floating point

Serialization

ProjectOperationlist()Convert string to listtuple()Convert string to tupleset()Convert string to setfrozenset()Convert the string into an immutable setdict()According to (key, value ) tuple list to create dictionary

characters and ASCII conversion

chr ord

Hexadecimal conversion

ProjectOperationbinConvert integers to binary stringsoctConvert integers to octal stringshexConvert integer to hexadecimal stringevalConvert to numerical value

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