分享程序员开发的那些事...
更新时间：2022-04-18 06:47:27
这有效 - 使用PLAIN javascript，是的，内联处理程序 - 它应该附加在onload中，但我们一次只能做一件事
This works - using PLAIN javascript and yes, an inline handler - it should be attached in onload, but let's take it one thing at a time
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<script>
var cnt=0,webpageArray = [
"http://cnn.com/",
"http://msn.com/",
"http://yahoo.com/"
];
function loadNextPage(dir) {
cnt+=dir;
if (cnt<0) cnt=webpageArray.length-1; // wrap
else if (cnt>= webpageArray.length) cnt=0; // wrap
var iframe = document.getElementById("myframe");
iframe.src = webpageArray[cnt];
return false; // mandatory!
}
</script>
</head>
<body>
<iframe id="myframe" src="http://cnn.com/"></iframe>
<a href="#" onclick="return loadNextPage(-1)"> << Previus Web Page </a> |
<a href="#" onclick="return loadNextPage(1)"> Next Web Page >> </a>
</body>
</html>
jQuery version
jQuery version
var cnt=0,webpageArray = [
"http://cnn.com/",
"http://msn.com/",
"http://yahoo.com/"
];
$(document).ready(function() {
$("#prev, #next").click(function(e) {
cnt+=this.id=="next"?1:-1;
if (cnt<0) cnt=webpageArray.length-1; // wrap
else if (cnt>= webpageArray.length) cnt=0; // wrap
$("#myframe").attr("src", webpageArray[cnt]);
return false;
});
});
<iframe id="myframe" src="http://cnn.com"></iframe> <br />
<a href="#" id="prev"> << Previous Web Page </a> |
<a href="#" id="next"> Next Web Page >> </a>