How to use the input function in python to input a list

After Python 3.0, keyboard input uses the input function

>>> x=input
>>> 123
123

Nothing is displayed on the command line. After inputting 123, it is directly assigned to x and printed.

Just using input cannot solve most data processing. Usually the input string needs to be split. Python uses the split() function to split it

>>> x=input()
1,2,3,4
>>> xlist=x.split(",")
>>> print(xlist)
['1', '2', '3', '4']

But this is still not enough. The input is Numbers, we hope that the list is also a number, so we need to further convert

>>> x=input()
1,2,3,4
>>> xlist=x.split(",")
>>> print(xlist)
['1', '2', '3', '4']
>>> xlist = [int(xlist[i]) for i in range(len(xlist))] #for循环，把每个字符转成int值
>>> print(xlist)
[1, 2, 3, 4]

The parameters of the split("") function can be any separator, including (a,b,c….;1,2,3… ;%,!,*,space)

>>> x=input()
1 2 3 4
>>> xlist=x.split(" ")
>>> print(xlist)
['1', '2', '3', '4']
>>> xlist = [int(xlist[i]) for i in range(len(xlist))]
>>> print(xlist)
[1, 2, 3, 4]

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