python中关于提升工作效率的一些小技巧

    x, y = 1, 2
    print(x, y)
    x, y = y, x
    print(x, y)

    str_list = ['I', 'like', 'python']
    str_join = " ".join(str_list)
    print(str_join)

    str = 'I like python and java0'
    print(str.split())

    print([0] * 10)
    print([8.3] * 10)

    x = {'a' : 1, 'b' : 2}
    y = {'b' : 3, 'c' : 4}
    z = {**x, **y}
    print(z)

    name = 'zhangsan'
    print(name[::-1])

    def get_a_string():
        a = 'George'
        b = 'is'
        c = 'cool'
        return a, b, c
    a, b, c = get_a_string()
    print(a, b, c)

    a = [1, 2, 3]
    b = [num * 2 for num in a if num is not 2]
    print(b)

    d = {'a' : 1, 'b' : 2, 'c' : 3}
    for key, val in d.items():
        print(key, val)

    l = ['a', 'b', 'c']
    for index, val in enumerate(l):
        print(index, val)

    a_list = list()
    a_dict = dict()
    a_set = set()

    name1 = " Gkere "
    name2 = "Gmerk///"
    print(name1.strip())
    print(name2.strip("/"))

    a = [1,2,3,4,5,3,2,2]
    print(max(set(a), key=a.count))

    import sys
    x = 1
    print(sys.getsizeof(x))

    from dicttoxml import dicttoxml
    d = {'a': 1, 'b': 2, 'c': 3}
    xml = dicttoxml(d, custom_root='test', attr_type=False)
    print(xml)

    l1 = [1, 2, 3]
    l2 = [4, 5]
    l1.extend(l2)
    print(l1)
    l3 = [1, 2, 3]
    l4 = [4, 5]
    l3.append(l4)
    print(l3)