lovecoding
/
Web1020


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        select{
            width: 100px;
            height: 200px;
        }
    </style>
</head>
<body>
    <select id="sel" multiple>
        <option value="one">one</option>
        <option value="two">two</option>
        <option value="three">three</option>
    </select>
    <script>
        var oSel = document.getElementById("sel");
        console.log(oSel.options);
        oSel.onclick = function(){
            console.log(oSel.selectedOptions);
            console.log(oSel.selectedIndex);
            console.log(oSel.options[1].selected);
        }
    </script>
</body>
</html>