C++中_onexit()用法简述

#include 
 #include 
 using namespace std;

 int func1(),func2(),func3();

 int main(int argc,char * argv[]){
_onexit(func2);
 _onexit(func1); //在此处不断排列组合三条语句的执行顺序
 _onexit(func3);
 cout<<"First Line"< cout<<"Second Line"<}

 int func1()
 {
 cout<<"fun1() executed!"< return 0;
 }

 int func2()
 {
 cout<<"fun2() executed!"< return 0;
 }
 int func3()
 {
 cout<<"fun3() executed!"< return 0;
 }