百度网友9cac6572017-09-11TA获得超过1971个赞关注<!DOCTYPEHTMLPUBLIC"-//W3C//DTDHTML4.0Transitional//EN"><html><head><title>NewDocument</title><scriptlanguage="J**aScript"type="text/j**ascript">varcity=[["北京","天津","上海","重庆"],["南京","苏州","南通","常州"],["福州","福安","龙岩","南平"],["广州","潮阳","潮州","澄海"],["兰州","白银","定西","敦煌"]];functiongetCity(){varsltProvince=document.getElementById("province");varsltCity=document.getElementById("city");varprovinceCity=city[sltProvince.selectedIndex-1];sltCity.length=1;for(vari=0;i<provinceCity.length;i++){sltCity[i+1]=newOption(provinceCity[i],provinceCity[i]);}}</script></head><body><formaction="somepage.asp"name=theForm"><selectname="province"id="province"onchange="getCity()"><optionvalue="0">请选择所在省份</option><optionvalue="直辖市">直辖市</option><optionvalue="江苏省">江苏省</option><optionvalue="福建省">福建省</option><optionvalue="广东省">广东省</option><optionvalue="甘肃省">甘肃省</option></select><selectid="city"name="city"><optionvalue="0">请选择所在城市</option></select></form></body></html>