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js 查詢標籤屬性

<html>

    <head>
        <title></title>
    </head>

    <body>
        <span id="test" flag="wx">ss</span>
        <span id="test" flag="wxss">wxss</span>
        <span id="test">ss</span>
    </body>
    <script type="text/javascript"
>
//var all = document.getElementsByTagName("span").attributes.getNamedItem("flag").nodeValue; //console.log(all) window.onload = function() { var spans = document.getElementsByTagName("span"); for(var k = 0, length = spans.length; k < length; k++) { var
item = spans[k]; var flag = item.attributes.flag; if(flag && flag.nodeValue == "wx") item.innerText = "xxx"; } var }
</script> </html>