Python 元组、文件

字典表的本质是哈希映射，通过键找到值，且是乱序 1.字典表的声明 方法一、d={‘name’:‘zhang’,‘age’:20} d Out[7]: {‘name’: ‘zhang’, ‘age’: 20} 方法二： d=dict(name=‘zhang’,age=20) d Out[4]: {‘name’: ‘zhang’, ‘age’: 20} d[‘name’] //通过键查找值 ‘zhan

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