print(p.address.city); // Houston
India and West Indies both suffered defeats to the impressive South Africa in this tricky group. They also both beat Zimbabwe to set up this all-important clash at Eden Gardens. The stadium is going to be electric.，详情可参考新收录的资料
Up to 10 simultaneous connections，推荐阅读新收录的资料获取更多信息
size = size * 2;，这一点在新收录的资料中也有详细论述