Python Learning (iii)

Basic data Type one, integer type (int)

32-bit machine, the number of digits of the integer is 32 bits, the value range is -2**31~2**31-1, namely -2147483648~2147483647

64-bit machine, the number of integers is 64 bits, the value range bit -2**63~2**63-1, that is -9223372036854775808~9223372036854775807

Bit_lenth (): Minimum number of bits to use when decimal is represented in binary

A = 6= ten=print(a.bit_length ())print(b.bit_length ())  Print(C.bit_length ())

The output is: 3,4,7

Two, Boolean type (BOOL)

String Conversion bit Boolean: bool (str), when the string is an empty string, converted to false, otherwise converted to true

' AFDS,BNK '   "' Print (bool (a), bool (b), BOOL (c))

The output is: true,false,true

"' if A:     Print (' correct ') Else :     Print (' error ')

The output is: Error

C. String type (str):

　　

Python Learning (iii)