Use tips for two methods by value and by reference (to be added)

The instantaneous argument (argument) to the formal parameter (parameter) of a function call takes place in a value or address pass.

----"Plain C + +" Bao Yu

The above values are passed by value, and the address is passed by address and by reference, by default, by value, but sometimes the by address and by reference are required;

For example:

1. Solve the equation of two yuan (to be added)

Search function in 2.hash lookup time (to be added)

Reference documents:

C + +: Please say call by value, address, reference three differences?

Use tips for two methods by value and by reference (to be added)