Operator overloading operator+= which appends another String instance into current String

instance.

[主观题]A． conversion operator which converts the current String instance into raw C-style. string oftype const char*.

[主观题]A．ssignment operator.

[单选题]如果算符函数调用格式的表达式：x.operator-(operator++(y，0)中的“—”是作为成员函数重载的，“++”是作为友元函数重载的，那么该表达式还可以表示为：()A．x-y++B．x-(++y)C． (x++)-yD．++x-y

[单选题]如果算符函数调用格式的表达式：x.operator-(operator++(y，0)中的“-”是作为成员函数重载的，“++”是作为友元函数重载的，那么该表达式还可以表示为：( )A．x-y++B．x-(++y)C．(x++)-yD．++x-y

[单选题]To safeguard the operator and other personnel working on or near a hoisting operation, which of the following precautions should be observed?A．Keep a load on the hoist until all personnel are finished workingB．Set the load on a movable dolly when tra

[名词解释] 操纵基因（operator）

[单选题]The container operator looks forward to（）the goods before the end of this month.A . aeliveryB . delivery ofC . our deliveryD . deliver

[判断题] Operator panel malfunction故障是操作面板故障。A . 正确B . 错误

[试题]在类中重载operator new运算符?

[单选题]The multimodal transport usually operated by（ ）carrierunder the control or