javascript解析xml实现省市县三级联动的方法(2)

<root> <province postcode="100000" > <city postcode="100100" > <area postcode="100101" /> </city> </province> <province postcode="110000" > <city postcode="110100" > <area postcode="110101" /> <area postcode="110102" /> <area postcode="110103" /> <area postcode="110104" /> <area postcode="110105" /> <area postcode="110106" /> <area postcode="110107" /> <area postcode="110108" /> <area postcode="110109" /> <area postcode="110111" /> <area postcode="110112" /> <area postcode="110113" /> <area postcode="110114" /> <area postcode="110115" /> <area postcode="110116" /> <area postcode="110117" /> </city> <city postcode="110200" > <area postcode="110228" /> <area postcode="110229" /> </city> </province> </root>