In C++, "?" Together with ":"* * ",it forms a triple conditional operator (? :)

Tripartite conditional operator (? :) Examples are as follows:

x？ y:z；

The rules of the above three-eye conditional operation are: first calculate the value of expression X, if X is true, the result of the whole three-eye operation is the value of expression Y; If x is false, the result of the whole operation is the value of expression z.

The following example is to find a larger program from two numbers:

int a=3，b = 4；

int max = a & gtb？ A: b;

The maximum value is 4.

Extended data:

C++ is the inheritance of C language, which can be used for procedural programming of C language, object-oriented programming characterized by abstract data types, and object-oriented programming characterized by inheritance and polymorphism. While C++ is good at object-oriented programming, it can also carry out process-based programming, so C++ can adapt to the size of the problem.

C++ not only has the practical characteristics of efficient computer operation, but also devotes itself to improving the programming quality of large-scale programs and the problem description ability of programming languages.