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  • python 元组切片

    #create a tuple
    tuplex = (2, 4, 3, 5, 4, 6, 7, 8, 6, 1)
    #used tuple[start:stop] the start index is inclusive and the stop index
    _slice = tuplex[3:5]
    #is exclusive
    print(_slice)
    #if the start index isn't defined, is taken from the beg inning of the tuple
    _slice = tuplex[:6]
    print(_slice)
    #if the end index isn't defined, is taken until the end of the tuple
    _slice = tuplex[5:]
    print(_slice)
    #if neither is defined, returns the full tuple
    _slice = tuplex[:]
    print(_slice)
    #The indexes can be defined with negative values
    _slice = tuplex[-8:-4]
    print(_slice)
    #create another tuple
    tuplex = tuple("HELLO WORLD")
    print(tuplex)
    #step specify an increment between the elements to cut of the tuple
    #tuple[start:stop:step]
    _slice = tuplex[2:9:2]
    print(_slice)
    #returns a tuple with a jump every 3 items
    _slice = tuplex[::4]
    print(_slice)
    #when step is negative the jump is made back
    _slice = tuplex[9:2:-4]
    print(_slice)
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  • 原文地址:https://www.cnblogs.com/sea-stream/p/9949547.html
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