男性較易偷吃?
python - 'has_key()' or 'in'? - Stack Overflow 根據歸結男女外遇的因素各不相同,例如男性外遇的原因可能包括與其他女性在生活上過於頻繁的接觸而日久生情,夫妻性生活不協調、對妻子不滿、追求生活刺激,或受到其他女性主動追求等;女性外遇則較可能是與舊情人復合、缺乏關愛,受到婚外性行為的吸引、因另一半外遇而報復等因素,不過不管是哪種原因而外遇,男、女的偷I wonder what is better to do: d = {'a': 1, 'b': 2} 'a' in d True or: d = {'a': 1, 'b': 2} d.has_key('a') True ... One semi-gotcha to avoid though is to make sure you do: "key in some_dict" rather than "key in some_dict.keys()". Both are equivalent semant...
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