mirror of
https://github.com/pocketpy/pocketpy
synced 2025-10-19 19:10:17 +00:00
133 lines
2.2 KiB
Python
133 lines
2.2 KiB
Python
class A:
|
|
def __init__(self, a, b):
|
|
self.a = a
|
|
self.b = b
|
|
|
|
def add(self):
|
|
return self.a + self.b
|
|
|
|
def sub(self):
|
|
return self.a - self.b
|
|
|
|
a = A(1, 2)
|
|
assert a.add() == 3
|
|
assert a.sub() == -1
|
|
|
|
assert A.__base__ is object
|
|
|
|
class B(A):
|
|
def __init__(self, a, b, c):
|
|
super(B, self).__init__(a, b)
|
|
self.c = c
|
|
|
|
def add(self):
|
|
return self.a + self.b + self.c
|
|
|
|
def sub(self):
|
|
return self.a - self.b - self.c
|
|
|
|
assert B.__base__ is A
|
|
|
|
b = B(1, 2, 3)
|
|
assert b.add() == 6
|
|
assert b.sub() == -4
|
|
|
|
class C(B):
|
|
def __init__(self, a, b, c, d):
|
|
super(C, self).__init__(a, b, c)
|
|
self.d = d
|
|
|
|
def add(self):
|
|
return self.a + self.b + self.c + self.d
|
|
|
|
def sub(self):
|
|
return self.a - self.b - self.c - self.d
|
|
|
|
assert C.__base__ is B
|
|
|
|
c = C(1, 2, 3, 4)
|
|
assert c.add() == 10
|
|
assert c.sub() == -8
|
|
|
|
class D(C):
|
|
def __init__(self, a, b, c, d, e):
|
|
super(D, self).__init__(a, b, c, d)
|
|
self.e = e
|
|
|
|
def add(self):
|
|
return super(D, self).add() + self.e
|
|
|
|
def sub(self):
|
|
return super(D, self).sub() - self.e
|
|
|
|
assert D.__base__ is C
|
|
|
|
d = D(1, 2, 3, 4, 5)
|
|
assert d.add() == 15
|
|
assert d.sub() == -13
|
|
|
|
assert isinstance(1, int)
|
|
assert isinstance(1, object)
|
|
assert isinstance(C, type)
|
|
assert isinstance(C, object)
|
|
assert isinstance(d, object)
|
|
assert isinstance(d, C)
|
|
assert isinstance(d, B)
|
|
assert isinstance(d, A)
|
|
assert isinstance(object, object)
|
|
assert isinstance(type, object)
|
|
|
|
assert isinstance(1, (float, int))
|
|
assert isinstance(1, (float, object))
|
|
assert not isinstance(1, (float, str))
|
|
assert isinstance(object, (int, type, float))
|
|
assert not isinstance(object, (int, float, str))
|
|
|
|
try:
|
|
isinstance(1, (1, 2))
|
|
exit(1)
|
|
except TypeError:
|
|
pass
|
|
|
|
try:
|
|
isinstance(1, 1)
|
|
exit(1)
|
|
except TypeError:
|
|
pass
|
|
|
|
class A:
|
|
a = 1
|
|
b = 2
|
|
|
|
assert A.a == 1
|
|
assert A.b == 2
|
|
|
|
class B(A):
|
|
b = 3
|
|
c = 4
|
|
|
|
assert B.b == 3
|
|
assert B.c == 4
|
|
|
|
assert B.a == 1
|
|
|
|
class A:
|
|
x = 1
|
|
x = x + 1
|
|
y = 1
|
|
z = x + y
|
|
|
|
assert A.x == 2
|
|
assert A.y == 1
|
|
assert A.z == 3
|
|
|
|
class MyClass:
|
|
a = 1,2,3
|
|
b, c = 1, 2
|
|
d = b + c
|
|
|
|
assert MyClass.a == (1, 2, 3)
|
|
assert MyClass.b == 1
|
|
assert MyClass.c == 2
|
|
assert MyClass.d == 3
|