1. In addition to Operator =, all overloaded operators in the base class will be derived. 2. In addition to New, New [], Delete, Delete [], the operand that is overloaded with the top-level function must contain a class object in the parameter table. To avoid the compiler distinguish between built-in or custom function calls. In addition, [], =, (), -> can only be overloaded for class members .3, for the overload function, a class such as Complex, A = B 54.3, can be compiled by compilation . And A = 54.3 b can't ......... must study hard! ! Time is really fast. Linux, C has to learn before. do not waste time
