This time I will bring you Js classic case code analysis. What are the precautions for Js classic case code analysis? . The following is a practical case, let’s take a look.
Mouseover to switch pictures:
<html>
<head>
<script type="text/javascript">
function mouseOver()
{
document.getElementById('b1').src ="diaochan.jpg"
}
function mouseOut()
{
document.getElementById('b1').src ="noimage.gif"
}
</script>
</head>
<body>
<a href="#"
onmouseover="mouseOver()" onmouseout="mouseOut()">
<img alt="Visit W3School!" src="noimage.gif" id="b1" onmouseover="alert('你的鼠标在图片上！')")/>
</a>
</body>
</html>js displayWeather forecast:
<html> <head><title></title> <script type="text/javascript"> </script> </head> <body > <p> <iframe src="http://m.weather.com.cn/m/pn11/weather.htm" width="480" height="70" frameborder="1"></iframe> </p> </body> </html>
js uses focus to select websites:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script type="text/javascript">
var i = 1;
var focusid;
function defau() {
document.getElementById('1').focus();
focusid=1;
}
function showtable() {
var id = i + 1;
document.getElementById(id).focus();
focusid=id;
i++;
if (i == 4) {
i = 0;
}
}
function openhref() {
var href = document.getElementById(focusid).href;
document.location = href;
}
</script>
</head>
<body onload="defau()">
<a href="http://www.baidu.com/" id="1">百度</a>
<a href="http://www.google.com.hk/" id="2">谷歌</a>
<a href="http://www.youku.com/" id="3">优酷</a>
<a href="http://www.tudou.com/" id="4">土豆</a>
<input id="Button1" type="button" value="选择" onclick="showtable()" /><br />
<input id="Button2" type="button" value="进入" onclick="openhref()" />
</body>
</html>I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website!
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The above is the detailed content of Js classic case code analysis. For more information, please follow other related articles on the PHP Chinese website!
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