input (): the output is in the form of a string
eval (): you can remove the outer quotation marks of the string
sorting and reverse order
enumeration and iteration
enumerate lazy evaluation, can not be viewed directly, the example is installed in the list to view
map ()
Example: Input a natural number, and output each bit of it at a time
. There are two parameters in the function.
Use the ordinary method:
reduce ()
filter ()
zip ()
