函数模板也可以重载

template<typename T> T MAX(T a, T b) { return a > b ? a : b; } template<typename T> T MAX(T a, T b, T c) { T temp = a > b ? a : b; return c > temp ? c : temp; } int main() { int a = 10, b = 20; cout << MAX<int>(a, b) << endl; int c = 30; cout << MAX(a, b, c) << endl; return 0; }