浅谈python中set使用

浅谈python中set使用 In [2]: a = set() # 常用操作1 In [3]: a Out[3]: set() In [4]: type(a) Out[4]: set In [5]: b = set([1, 3]) In [6]: b Out[6]: {1, 3} In [7]: type(b) Out[7]: set In [8]: b.update(2) --------------------------------------------------------------------------- TypeError Tr