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>
        .div1{
            color: red;
        }
    </style>
</head>
<body>
    <div id="box">hello</div>
    <img >
    <script>
        var oBox = document.getElementById("box");
        var oImg = document.getElementsByTagName("img")[0];
        // oBox.setAttribute("class","div1");
        // oBox.class = "div1";
        // oImg.src = "./image/img1.png";
        oImg.index = 1;
        console.log(oImg.index);

        

    </script>
</body>
</html>