public static string GetProvinceByadministrativeArea(string code)
{
code = code.Substring(0, 2);
switch (code)
{
case "11": return "北京";
case "12": return "天津";
case "13": return "河北";
case "14":
return "山西";
case "15":
return "内蒙";
case "21":
return "辽宁";
case "22":
return "吉林";
case "23":
return "黑龙江";
case "31": return "上海";
case "32":
return "江苏";
case "33":
return "浙江";
case "34":
return "安徽";
case "35":
return "福建";
case "36":
return "江西";
case "37":
return "山东";
case "41":
return "河南";
case "42":
return "湖北";
case "43":
return "湖南";
case "44":
return "广东";
case "45":
return "广西";
case "46":
return "海南";
case "50": return "重庆";
case "51":
return "四川";
case "52":
return "贵州";
case "53":
return "云南";
case "54":
return "西藏";
case "61":
return "陕西";
case "62":
return "甘肃";
case "63":
return "青海";
case "64":
return "宁夏";
case "65":
return "新疆";
case "71":
return "台湾";
case "81":
return "香港";
case "82":
return "澳门";
}
return "";
}