如何在Python中创建一个空类？

class Amit:
   pass

class Amit:
   pass

# Creating objects
ob1 = Amit()
ob2 = Amit()

# Displaying
print(ob1)
print(ob2)

<__main__.Amit object at 0x7f06660cba90>
<__main__.Amit object at 0x7f06660cb550>

class Student:
   pass
# Creating objects
st1 = Student()
st1.name = 'Henry'
st1.age = 17
st1.marks = 90

st2 = Student()
st2.name = 'Clark'
st2.age = 16
st2.marks = 77
st2.phone = '120-6756-79'

print('Student 1 = ', st1.name, st1.age, st1.marks)
print('Student 2 = ', st2.name, st2.age, st2.marks, st2.phone)

Student 1 =  Henry 17 90
Student 2 =  Clark 16 77 120-6756-79

# Empty function in Python
def demo():
   pass

a = True
if (a == True) :
   pass
else :
   print("False")

cond = True
while(cond == True):
   pass