<body>
省份：
<select id="province">
<option value="">请选择</option>
<option value="吉林省">吉林省</option>
<option value="辽宁省">辽宁省</option>
<option value="山东省">山东省</option>
</select>
城市:
<select id="city">
<option value="">请选择</option>
</select>
</select>
</body>
<script type="text/javascript">
document.getElementById("province").onchange=function(){
var city= document.getElementById("city");
var options=city.getElementsByTagName("option");
var len=options.length;
for(var z=1;z<len;z++){
city.removeChild(options[1]);
}
var provinceValue = this.value;
var cityArr;
if(provinceValue=="吉林省"){
cityArr = ["长春市","吉林市","四平市","松原市","通化市"];
}else if(provinceValue=="辽宁省"){
//3 为辽宁省定制城市列表
cityArr = ["沈阳市","大连市","铁岭市","抚顺市","丹东市"];
}else if(provinceValue=="山东省"){
//3 为山东省定制城市列表
cityArr = ["青岛市","济南市","烟台市","潍坊市","威海市"];
}
for(var i=0;i<cityArr.length;i++){
var option=document.createElement("option");
option.setAttribute("value",cityArr[i]);
var text = document.createTextNode(cityArr[i]);
option.appendChild(text);
city.appendChild(option);
}
}
</script>
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时间： 2024-12-07 20:59:46