本文实例讲述了python面试题之列表声明。分享给大家供大家参考,具体如下: 下面程序输出的结果为? val = [['a']*2]*2 print val val[0][1]='b' print val 答案为: [[‘a’, ‘a’], [‘a’, ‘a’]] [[‘a’, ‘b’], [‘a’, ‘b’]] 而不是 [[‘a’, ‘a’], [‘a’, ‘a’]] [[‘a’, ‘b’], [‘a’, ‘a’]] 请看下面的例子: val = ['a']*2 #或者直接声明val = ['a','a'] print val print id(val) print id(v
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