>>地址联动
	1、加载province
		接口：/area/loadProvince
		参数：无
		返回值：
			[
			    {
			        "id": 1,
			        "name": "北京市"
			    },
			    {
			        "provinceId": 2,
			        "name": "天津市"
			    }
			]
	
	2、根据province加载city
		接口：/area/loadCity
		参数：provinceId	
		返回值：
			[
			    {
			        "id": 3,
			        "provinceId": 2,
			        "name": "市辖区"
			    },
			    {
			        "cityId": 4,
			        "provinceId": 2,
			        "name": "县"
			    }
			]
	
	3、根据city加载town
		接口：/area/loadTown
		参数：cityId
		返回值：
			[
			    {
			        "id": 17,
			        "cityId": 2,
			        "name": "密云县",
			        "zip": "100000",
			        "telZip": "010"
			    },
			    {
			        "id": 18,
			        "cityId": 2,
			        "name": "延庆县",
			        "zip": "100000",
			        "telZip": "010"
			    }
			]