十年磨一剑

#include #include std::function returnLambda() { return [](int x, int y) { return x*y; }; } int main() { auto lf = returnLambda(); std::cout << lf(6, 7) << std::endl; } 输出结果：42 l

The regex match and search interface //main.cpp #include #include using namespace std; void out(bool b) { cout << (b ? "found" : "not found") << endl; } int main() { // find XML/HTML-tagged