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    技术2022-05-11  56

    <html><head><script type="text/javascript">function put(){txt=form1.selectPro1.options[form1.selectPro1.selectedIndex].valuedocument.forms[0].favorite.value=txtalert(txt);}function put1(){ alert(form1.selectPro1[0].value);}</script></head>

    <body><form name="form1">Select your favorite browser:<select name="selectPro1" οnchange="put1()"> <option value="1" selected>Internet Explorer</option> <option value="2">Netscape</option> <option value="3">Opera</option></select><br /><br />Your favorite browser is: <input type="text" name="favorite" size="20"><select name="select2" size="10" style="overflow-y:auto;WIDTH:128px;margin:-2px;" οnchange="alert(document.forms[0].select2.options[document.forms[0].select2.selectedIndex].text);">                  <option> ????</option>                  <option> ??????</option>                  <option> IT??</option>                  <option> ????</option>                  <option> ??????</option>                  <option> IT??</option>                  <option> ????</option></select></form></body>

    </html> 


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