如何更改iframe src？ [英] How to change the iframe src?
问题描述
因此，在我的页面上，我使用Iframe在其中显示另一个网页。我想设置一个包含许多网页的数组（尽我所能），我想制作2个按钮，所以每次点击下一步按钮，它都会改变我所拥有的iframe标签内的页面。我的问题是如何设置2个按钮（下一个和上一个），所以当我点击它们时，我会相应更改为数组设置？
So on my page I am using Iframe to display another webpage inside it. I want to set up an Array with many webpage (as much as I want) and I want to make 2 buttons so every time I click the Next button it will change the page inside the iframe tag that I have. My question is how can I setup the 2 buttons (Next and previous) so when I click them I will change accordingly to Array set up ?
<html xmlns="w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
var webpageArray = new Array()
webpageArray[0]= "web0.com/";
webpageArray[1]= "web1.com/";
webpageArray[2]= "web2.com/";
<iframe id="myframe" src="web1.com"></iframe>
loadNextPage = function() {
var iframe = document.getElementById("myframe");
var src = webpageArray[1];
iframe.src = src;
return;
}
<body>
<a href="" onclick="LoadNextPage"> Next Web Page >> </a>
</body>
</html>
推荐答案
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>
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