擅长:python、mysql、java
<p>如果希望它看起来更像python,可以使用属性:</p>
<pre><code>class RootClass:
@property
def val(self):
return RootClass._myVal
@val.setter
def val(self, y):
RootClass._myVal= y
class A (RootClass):
pass
class B (A):
pass
class C (B):
pass
class D (RootClass):
pass
if __name__ == "__main__":
objA = A()
objB = B()
objC = C()
objD = D()
objD.val = 100
print(objA.val)
print(objB.val)
print(objC.val)
print(objD.val)
</code></pre>