使用json數據實現簡單的三級聯動

json數據格式:javascript var data = { "province": ["廣東省","廣東省","廣東省","廣東省","廣東省","廣東省","廣東省"], "city":{ "廣東省":["韶關市","韶關市","韶關市","韶關市","韶關市"], "山東省":["韶關市","韶關市","韶關市","韶關市","韶關市"], "廣東省":["韶關市","韶

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