python需要分号吗

>>> class Person:

    name = 'tom'

    age = 18

    >>> p1 = Person()

>>> print(p1.age)

>>>

>>> class Student:

    name = 'tom';

    age = 18;

>>> stu1 = Student();

>>> print(stu1.age)

>>>

>>> num1 = 1; num2 =2;

>>> print(num1+num2);

3

>>>