# ==和is
# ==用来判断值是否相等
# is是用看来判断是不是指定了同一个东西，判断是不是指向了同一个地址等
a = [11,22,33]
b = [11,22,33]
a == b # True
a is b # False
print(id(a))
print(id(b))
c = a
print(id(c))
print(a is c)
a = 100
b = 100
print(a == b)
print(a is b)
print("===============")
a = 100000000
b = 100000000
print(a == b)
print(a is b)