# Python's list slice syntax can be used without indices # for a few fun and useful things: # You can clear all elements from a list: >>> lst = [1, 2, 3, 4, 5] >>> del lst[:] >>> lst [] # You can r...
Doctest语法 You
might have guessed from looking at the previous example: doctest
recognizes tests by looking for sections of text that look like they've
been copi
