写出下面程序执行后的运行结果。 #include #include using namespace std;void f____{char t[20]; int i, j;for ____for ____if ____ < 0){strcpy____;strcpy____;strcpy____;}}void main____{char p[][10] = { "abc", "aabdfg", "abbd", "dcdbe", "cd" };f____;cout << strlen____;}