类型定义举例

>>> basket = {'apple', 'orange', 'apple', 'pear', 'orange', 'banana'}
>>> print(type(basket))
<class 'set'>
>>> xline = ['x1','x2','x3']
>>> print(type(xline))
<class 'list'>
>>> dict = {'ylz':'xiao','Age':7}
>>> print(type(dict))
<class 'dict'>
>>> a = 'name'
>>> print(type(a))
<class 'str'>
>>> b = 4
>>> print(type(b))
<class 'int'>
>>> tup1 = ('xx1','xx2')
>>> print(type(tup1))
<class 'tuple'>
>>>