Constructor and destructor in C ++

Constructor: this function is automatically executed when the class instantiates an object and initializes the data in the class. Constructor can be loaded from multiple constructors, but only one default constructor can be created. Destructor: a function that performs operations before canceling the memory occupied by an object. The Destructor cannot be overloaded and can only have one. The order in which constructor and destructor are called: The first constructor constructed after the constructor and then the first constructor constructed after the constructor. It is equivalent to a stack.

# Include <iostream> # include <string> using namespace std; class Student {public: Student (string, string, string );~ Student (); void show (); private: string num; string name; string sex;}; Student: Student (string nu, string na, string s) {num = nu; name = na; sex = s; cout <name <"is builded! "<Endl;} void Student: show () {cout <num <"\ t" <name <"\ t" <sex <endl;} Student ::~ Student () {cout <name <"is destoried! "<Endl ;}int main () {Student s1 (" 001 "," qishou "," male "); s1.show (); Student s2 (" 007 ", "programmatic", "female"); s2.show (); cout <"nihao" <endl; cout <"NIHAO" <endl; return 0 ;}