<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>图片不停的自动变换大小</title>
</head>
<body>
<img src="https://www.baidu.com/img/bd_logo1.png" name="logo_img" border="1" alt="图片" />
不停的自动变换大小
<script>
var b = 1;
var c = true;
function butong_net(){
if(document.all);
if(c == true) {
b++;
}
if(b==100) {
b--;
c = false
}
if(b==10) {
b++;
c = true;
}
if(c == false) {
b--;
}
logo_img.width=150 + b;
logo_img.height=125 - b;
setTimeout("butong_net()",50);
}
butong_net();
</script>
</body>
</html>
