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add_func?=?lambda?z:?z?**?2is_odd?=?lambda?z:?z%2?==?1multiply?=?lambda?x,y:?x*y?aList?=?list(range(10))print(aList)#?[0,?1,?2,?3,?4,?5,?6,?7,?8,?9]?
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#?Syntax?of?list?comprehension[?expression(x)?for?x?in?aList?if?optional_condition(x)?]??print(list(map(add_func,?aList)))print([x?**?2?for?x?in?aList])#?[0,?1,?4,?9,?16,?25,?36,?49,?64,?81]#?[0,?1,?4,?9,?16,?25,?36,?49,?64,?81]??print(list(filter(is_odd,?aList)))print([x?for?x?in?aList?if?x%2?==?1])#?[1,?3,?5,?7,?9]#?[1,?3,?5,?7,?9]?
ÏÂÔصØÖ·£ºpython-list-comprehension.py
https://gist.github.com/edenau/148a56e624297addcbceb1805c2d4554#file-python-list-comprehension-py
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a,?b,?c,?d?=?aList[0:4]print(f'a?=?{a},?b?=?{b},?c?=?{c},?d?=?{d}')#?a?=?0,?b?=?1,?c?=?2,?d?=?3?a,?*b,?c,?d?=?aListprint(f'a?=?{a},?b?=?{b},?c?=?{c},?d?=?{d}')#?a?=?0,?b?=?[1,?2,?3,?4,?5,?6,?7],?c?=?8,?d?=?9?ÏÂÔصØÖ·£ºpython-unpacking.py?
https://gist.github.com/edenau/da1e354a509d4129db47545f44a5028d#file-python-unpacking-py
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numList?=?[0,?1,?2]engList?=?['zero',?'one',?'two']espList?=?['cero',?'uno',?'dos']print(list(zip(numList,?engList,?espList)))#?[(0,?'zero',?'cero'),?(1,?'one',?'uno'),?(2,?'two',?'dos')]??for?num,?eng,?esp?in?zip(numList,?engList,?espList):?print(f'{num}?is?{eng}?in?English?and?{esp}?in?Spanish.')#?0?is?zero?in?English?and?cero?in?Spanish.#?1?is?one?in?English?and?uno?in?Spanish.#?2?is?two?in?English?and?dos?in?Spanish.?
ÏÂÔصØÖ·£ºpython-zip-1.py
https://gist.github.com/edenau/f159058e3d1763ea2ec8cd792e4a8280#file-python-zip-1-py
Eng?=?list(zip(engList,?espList,?numList))Eng.sort()?#?sort?by?engLista,?b,?c?=?zip(*Eng)??print(a)print(b)print(c)#?('one',?'two',?'zero')#?('uno',?'dos',?'cero')#?(1,?2,?0)?
ÏÂÔصØÖ·£ºpython-zip-2.py
https://gist.github.com/edenau/4a2b984cf78daae9fc8ba57a3b0a843b#file-python-zip-2-py
¿ªÊ¼Ê±£¬ Enumerate ¿´ÆðÀ´ÓеãÏÅÈË£¬µ«ÔںܶàÇé¿öÏÂʹÓÃËüȷʵÄÜ·½±ãºÜ¶à¡£
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upperCase?=?['A',?'B',?'C',?'D',?'E',?'F']lowerCase?=?['a',?'b',?'c',?'d',?'e',?'f']for?i,?(upper,?lower)?in?enumerate(zip(upperCase,?lowerCase),?1):?print(f'{i}:?{upper}?and?{lower}.')#?1:?A?and?a.#?2:?B?and?b.#?3:?C?and?c.#?4:?D?and?d.#?5:?E?and?e.#?6:?F?and?f.?
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https://gist.github.com/edenau/34fabb07f38dde6b186724f85bd1e7b8#file-python-enumerate-py
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def?gen(n):?#?an?infinite?sequence?generator?that?generates?integers?>=?n?while?True:?yield?n?n?+=?1?G?=?gen(3)?#?starts?at?3print(next(G))?#?3print(next(G))?#?4print(next(G))?#?5print(next(G))?#?6?
ÏÂÔصØÖ·£ºpython-generator.py
https://gist.github.com/edenau/d23b71ff473720ae19fd4514f2232bdb#file-python-generator-py
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