突发奇想，想真么写，但是为什么X打印不出来呢

# Enter a code

class Person(object):

    def __init__(self, name, gender):

        self.name = name

        self.gender = gender

class Student(Person):

    def __init__(self, name, gender, score):

        super(Student, self).__init__(name, gender)

        self.score = score

class Teacher(Person):

    def __init__(self, name, gender, course):

        super(Teacher, self).__init__(name, gender)

        self.course = course

p = Person('Tim', 'Male')

s = Student('Bob', 'Male', 88)

t = Teacher('Alice', 'Female', 'English')

for x in (Student,object,Teacher):

    if isinstance(t,x) == False:

        continue

    else:

        print('T is {}'.format(x))