列表的嵌套

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# Author kevin_hou movies = ["The Holy Grail", 1975, "Terry Jones & Terry Gilliam",91,           ["Graham Chapman",            ["Michel Palin","John Cleese",             "Terry Gilliam", "Eric Idle", "Terry Jones"]]] print(movies) ''' ['The Holy Grail', 1975, 'Terry Jones & Terry Gilliam', 91, ['Graham Chapman', ['Michel Palin', 'John Cleese', 'Terry Gilliam', 'Eric Idle', 'Terry Jones']]]   '''   for each_item in movies:     print(each_item) ''' The Holy Grail 1975 Terry Jones & Terry Gilliam 91 ['Graham Chapman', ['Michel Palin', 'John Cleese', 'Terry Gilliam', 'Eric Idle', 'Terry Jones']]   '''   for each_item in movies:     if isinstance(each_item, list): #检查当前列表是否为一个列表         for nested_item in each_item:   #内循环需要一个新的目标标识符             print(nested_item)  #如果这是一个列表，使用另一个“for”循环处理这个嵌套列表     else:         print(each_item)    #如果外围列表的当前项不是一个列表，则在屏幕上显示这一项 ''' The Holy Grail 1975 Terry Jones & Terry Gilliam 91 Graham Chapman ['Michel Palin', 'John Cleese', 'Terry Gilliam', 'Eric Idle', 'Terry Jones'] ''' # help(isinstance(object,tuple))   for each_item in movies:     if isinstance(each_item,list):         for nested_item in each_item:             if isinstance(nested_item,list):    #处理一个嵌套很深的列表，它位于另一个嵌套列表中                 for deeper_item in nested_item: #后者本身嵌套在外围列表中                     print(deeper_item)             else:                 print(nested_item)     else:         print(each_item)   ''' The Holy Grail 1975 Terry Jones & Terry Gilliam 91 Graham Chapman Michel Palin John Cleese Terry Gilliam Eric Idle Terry Jones '''