Conversion between Python's different binaries

Different binary

Binary 0b101

A binary number that starts with the number 0 and the letter B will throw a SyntaxError exception if a number greater than or equal to 2 appears

Octal 0711

Numbers preceded by number 0 indicate octal numbers if a number greater than or equal to 8 throws a SyntaxError exception

Decimal 123

Normal display cannot appear letter

Hex 0x15

The hexadecimal number that begins with the number 0 and subtitle x can occur when 0-9 and abcdef or abcdef other values throw a SyntaxError exception

Python built-in functions after 2.6

#10进制转为2进制

>>> Bin (Ten) ' 0b1010 '

#2进制转为10进制

>>> Int ("1001", 2) 9

#10进制转为16进制

>>> Hex ' 0xa '

#16进制到10进制

>>> int (' FF ', 16) 255

>>> int (' 0xAB ', 16) 171

#十进制转为八进制

>>print ("%o"%) >>12

#16进制到2进制

>>> bin (0xa) ' 0b1010 ' >>>

#10进制到8进制

>>> Oct (8) ' 010 '

#2进制到16进制

>>> Hex (0b1001) ' 0x9 '

In addition, in an interactive interpreter environment. Python automatically converts the different binaries to decimal.

>>> 0b101 + 0711 + 123 + 0x15 606

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