Sample usage 用法示例：

http://g.tulips.com.hk/u/2/d.php?x=22.3234966&y=114.1688089&z=23&co=CN

x is latitude x是纬度
y is longitude y是经度
z is amount of cities/places z是城市/地方的数量
co is Codes co 是 代码


Reference Codes 参考代码：

"CN", "China 中国"-
"GB", "Great Britain 大不列颠"-
"AE", "United Arab Emirates 阿拉伯联合酋长国"-
"AR", "Argentina 阿根廷"-
"AT", "Austria 奧地利"-
"AU", "Australia 澳大利亚"-
"AZ", "Azerbaijan 阿塞拜疆"-
"BE", "Belgium 比利时"-
"BG", "Bulgaria 保加利亚"-
"BR", "Brazil 巴西"-
"BY", "Belarus 白俄罗斯"-
"CF", "Central African Republic 中非共和国"-
"CH", "Switzerland 瑞士"-
"CI", "Cote d'Ivoire 象牙海岸"-
"CZ", "Czechoslovakia 捷克斯洛伐克"-
"DE", "Germany 德国"-
"DK", "Denmark 丹麦"-
"DZ", "Algeria 阿尔及利亚"-
"EC", "Cuenca 昆卡"-
"EE", "Estonia 爱沙尼亚"-
"EG", "Egypt 埃及"-
"ES", "Spain 西班牙"-
"FR", "France 法国"-
"FI", "Finland 芬兰"-
"GL", "Greenland 格陵兰"-
"GR", "Greece 希腊"-
"HU", "Hungary 匈牙利"-
"ID", "Indonesia 印度尼西亚"-
"IN", "India 印度"-
"KR", "Korea 韩国"-
"KP", "Korea 韩国"-
"KZ", "Kazakhstan 哈萨克斯坦"-
"KH", "Cambodia 柬埔寨"-
"IQ", "Iraq 伊拉克"-
"IT", "Italy 意大利"-
"LT", "Lithuania 立陶宛"-
"LY", "Lybia 利比亚"-
"LV", "Latvia 拉脱维亚"-
"MM", "Myanmar 缅甸"-
"MX", "Mexico 墨西哥"-
"MY", "Malaysia 马来西亚"-
"NG", "Nigeria 奈及利亚"-
"NL", "Netherland 荷兰"-
"NO", "Norway 挪威"-
"NZ", "New Zealand 新西兰"-
"OM", "Oman 阿曼"-
"PG", "Papua New Guinea 巴布亚新几内亚"-
"PH", "Philippines 菲律宾"-
"PL", "Poland 波兰"-
"PT", "Portugal 葡萄牙"-
"RO", "Romania 罗马尼亚"-
"RU", "Russia 俄国"-
"SA", "Saudi Arabia 沙特阿拉伯"-
"SE", "Sweden 瑞典"-
"SG", "Singapore 新加坡"-
"SK", "Slovakia 斯洛伐克"-
"SL", "Sierra Leone 塞拉利昂"-
"SN", "Senegal 塞内加尔"-
"TH", "Thailand 泰国"-
"TR", "Turkey 土耳其"-
"UA", "Ukraine 乌克兰"-
"VN", "Vietnam 越南"-
"VU", "Vanuatu 瓦努阿图"-
"ZA", "South Africa 南非"-