我正在尝试这样做:
#includeusing namespace std; class smth { public: void function1 () { cout<<"before main";} void function2 () { cout<<"after main";} }; call function1(); int main () { cout<<" in main"; return 0; } call funtion2();
我希望有这样的信息:"在主要之前""主要""主要之后"
我该怎么做?
你不能.至少不那样.您应该能够通过将代码放在类构造函数和析构函数中来解决它,然后声明一个全局变量:
struct myStruct { myStruct() { std::cout << "Before main?\n"; } ~myStruct() { std::cout << "After main?\n"; } }; namespace { // Put in anonymous namespace, because this variable should not be accessed // from other translation units myStruct myStructVariable; } int main() { std::cout << "In main\n"; }