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  • tuple 元组

    #()  元组
    # 元组的索引切片
    #
    t = (1,2,3,5,6,8,9,5,67,2,3,)
    #
    print(t)
    print(type(t))    #  <class 'tuple'>
    print(t[0])
    print(t[3])
    print(t[:3])
    print(t[::3])
    
    # tuple
    t = (1,2,3,5,6,8,9,5,67,2,3,22,3,6,5,2,3,6)
    t = t.count(2)
    print(t)
    print(t.index(2))
    
    
    t = ('mi',1,3,6,99,5,9,5,'niaho')
    print(dir(t))       #['__add__', '__class__', '__contains__', '__delattr__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__getitem__', '__getnewargs__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__iter__', '__le__', '__len__', '__lt__', '__mul__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__rmul__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', 'count', 'index']
    print('__iter__' in dir(t))  #  True
    #   元组可作为可迭代对象
    for i in t:
        print(i)
    
    # 元组的拆包
    a,b = 5 , 3
    a , b = [5,3]
    a , b = (5,3)
    
    # 推导式
    re0 = [i for i in range(9)]
    print(re0)
    #[0, 1, 2, 3, 4, 5, 6, 7, 8]
    # 生成器
    re =  (i for i in range(9))
    print(re)   #<generator object <genexpr> at 0x032FBF40>
    for i in re:
        print(i)
    # 0
    # 1
    # 2
    # 3
    # 4
    # 5
    # 6
    # 7
    # 8
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  • 原文地址:https://www.cnblogs.com/lxcai213/p/13330089.html
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