例 6.3:getElementsByTagName()IEFF.html <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"/> <SCRIPT LANGUAGE="JavaScript"> <!-- window.onload=function(){ var arr = document.getElementsByTagName("option"); alert("arr[i].value is "+arr[2].value); } //--> </SCRIPT> </HEAD> <BODY> <SELECT NAME="" id="province" style="width:140px;background-color:red"> <option>红</option> <option>兰</option> <option>紫</option> </SELECT> </BODY> </HTML>
更多请见:https://blog.csdn.net/qq_43650923/article/details/102454433
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