javscript操作Select标签[动态添加，清空]时间：2021-10-22 15:05:07<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>建站学-www.jzxue.com</title><mce:script type="text/javascript"><!--function addList(){var list = document.getElementById("list");for(var i = 1; i <= 5; i++){var newOption = document.createElement("option");newOption.setAttribute("value", i);newOption.appendChild(document.createTextNode("建站学" + i));list.appendChild(newOption);}}function clearList(){var list = document.getElementById("list");for(var i = list.options.length; i >= 0; i--){list.remove(i);}//注意：每删除一个option其它option的index特性会自动重置，因此，按以下方法(即从上往下删是清除不了的)//for(var i = 0; i< list.options.length; i++){// list.remove(i);//}}// --></mce:script></head><body><select name="list" id="list"></select><input type="button" onclick="addList()" value="生成"/><input type="button" onblur="clearList()" value="清空" /></body></html> 转：http://www.jzxue.com/wangzhankaifa/javascript-ajax/200808/26-762.html
