標(biāo)記下，總結(jié)下經(jīng)驗(yàn)
select清空option
1 document.getElementById("type").options.length = 0;
select創(chuàng)建option
1
2 function addOption(objSelect,optionVal,optionText) {
3 var _o = document.createElement("option");
4 _o.text = optionText;
5 _o.value = optionVal;
6 objSelect.add(_o);
7 }
8