tuple、list、string三者转换

class forDatas:
    def __init__(self):
        pass

    def str2list(self):
        s = 'abcd321'
        l = list(s)
        print(l)

    def str2tuple(self):
        s = '123abc'
        self.t = tuple(s)
        print(self.t, type(self.t))

    def tuple2str(self):
        ex = ('1', '2', '3', 'a', 'b', 'c')
        s = ''.join(self.t)
        ex = ''.join(ex)
        print(s)
        print(ex, type(ex))
        ex = (1, 2, 3, 'a', 'b', 'c')
        alist = list(ex)
        print(alist, type(alist))
        tu = tuple(alist)
        print(tu, type(tu))

    def list2str(self):
        alist = [1, 2, 3, 'a', 'b', 'c']
        s = ''.join(alist)
        print(s)


if __name__ == '__main__':
    pj = forDatas()
    # pj.str2list()  #['a', 'b', 'c', 'd', '3', '2', '1']
    # pj.str2tuple()  #('1', '2', '3', 'a', 'b', 'c')
    pj.tuple2str()
    # pj.list2str()