operator 中处理”自我赋值“ operator=操作符缺省情况下返回引用——TYPE& TYPE::operator=(const TYPE&),原因很简单,operator=返回引用的理由是使你能在一个语句中连接多个赋值. int x, y, z; x = y = z = ; // chain of assignments 赋值采用右结合律,上面的代码被编译器解释为: x = (y = (z = )); 在编译过程中,赋值是右结合的.说白了就是如果你想要玩一下多个赋值,opera…
python 对象/变量 对象 Every object has an identity, a type and a value. An object's identity never changes once it has been created; you may think of it as the object's address in memory. The 'is' operator compares the identity of two objects; the id() fun…