Difference between Py and py3: Input input () function

• Python 1, 2.7Is generally usedInput ()It is more common, but it can also be usedRaw_input (); They still have the following differences

C: \ windows \ system32> Python
Python 2.7.13 (v2.7.13: a06454b1afa1, Dec 17 2016, 20:42:59) [MSC v.1500 32 bit (
Intel)] on Win32
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>>> S = input ("Enter:") Enter saatraceback (most recent call last): file "<stdin>", line 1, in <module> file "<string>", line 1, in <module> nameerror: Name 'saa 'Is Not Defined

>>> S = input ("Please input :")

Enter 'asxs'

>>> S
'Asxs'

When I useRaw_input ()Function time:

>>> S = raw_input ("input something:") Input something: haha >>> s '\ xb9 \ xfe \ xb9 \ xfe' >>>> S = raw_input ("input something:") Input something: axsx >>> s 'axsx'

>>> S = raw_input ("input something :")
Input something: 0
>>> S
'0'
>>> Type (s)
<Type 'str'>

ForPython2.7OfRaw_input ()Function,For any input, the raw_input () function treats it as a string..

HoweverInput ()No error is reported if you enter data of numbers, lists, and tuples.

>>> s=input("input something:")input something:1234556>>> s1234556>>> type(s)<type ‘int‘>>>> s=input("input something:")input something:(1,2,‘a‘,999)>>> s(1, 2, ‘a‘, 999)>>> type(s)<type ‘tuple‘>>>> s=input("input something:")input something:[1,2,[12,2],42,(2,2,‘a‘)]>>> s[1, 2, [12, 2], 42, (2, 2, ‘a‘)]>>> type(s)<type ‘list‘>

• HoweverPython3Or even noneRaw_input ()This function

　　

HoweverPython3SupportedInput ()Function, however, it can directly accept a string of characters:

>>> S = input ("input something :")
Input something: aaaaa
>>> S
'Aaaaa'
>>> S = input ("input something :")
Input something :( 12,23, 'A ')
>>> S
"(12,23, 'A ')"
>>> Type (s)
<Class 'str'>
>>> S = input ("input something :")
Input something: 123
>>> S
'123'
>>> Type (s)
<Class 'str'>
>>> S = input ("input something :")
Input something: 'asx'
>>> S
"'Asx '"
>>> S = input ("input something :")
Input something: "wsacvd12324qaa"
>>> S
'"Wsacvd12324qaa "'

As you can see,For any input, the input () function of python3 treats it as a string..

　　Summary wave,Python2OfRaw_input ()Functions andPython3OfInput ()The function functions are almost the same. It treats user input as the content of the entire string, and the output type is also the STR string type;

　　Python3Not SupportedRaw_input ()Function;

　　Python2OfInput ()It is a God-like existence. It intelligently identifies user input content and gives corresponding types. when inputting a string in a singular number, you must add 'xxx' "XXX" quotation marks to the string.

Above

Difference between Py and py3: Input input () function