Now, try using a copy construction and operator assignment for class a, declared in Listing 15.
现在，尝试为类a使用一个复制结构和运算符赋值，在清单15中声明该类。
2
Can operator new return before construction is finished?
能操作返回施工前完成吗？
3
These cost estimates must be approved by the OPERATORConstruction Supervisor or the OPERATOR Implementation Supervisor in writing prior to the start of any WORK.