帮助解决一个简单问题 [英] Help with a Simple Question
问题描述
这是一个新手的问题。我想预加载4张图片，只有当所有4张图片都被加载到浏览器的缓存中时，我想开始一个
幻灯片放映（）函数。如果图片未完成加载到缓存中，
幻灯片放映看起来不太好。
我不知道如何/何时调用幻灯片（）确保它的功能
在预加载完成后启动。
提前感谢您的帮助！
特里
********************************* ***************** ***********
< head>
< script language =" JavaScript" type =" text / JavaScript">
<！ -
函数MM_preloadImages（）{
var d = document; if（d.images）{if（！d.MM_p）d.MM_p = new Array（）;
var i，j = d.MM_p.length，a = MM_preloadImages.arguments; for（i = 0; i
< a.length; i ++）
if（a [i] .indexOf（"＃"）！= 0） {d.MM_p [j] =新图片; d.MM_p [j ++]。src = a
[i];}}
}
function slideshow（）{
.....
}
// - >
< / script>
< / head>
< body onload =" MM_preloadImages（'''01.jpg ''，''02.jpg''，''03.jpg''，''04.jpg''）">
< / body>
< / html>
Hi,
This is a newbie''s question. I want to preload 4 images and only when
all 4 images has been loaded into browser''s cache, I want to start a
slideshow() function. If images are not completed loaded into cache,
the slideshow doesn''t look very nice.
I am not sure how/when to call the slideshow() function to make sure it
starts after the preload has been completed.
Thanks in advance for your help!
Terry
************************************************** ***********
<head>
<script language="JavaScript" type="text/JavaScript">
<!--
function MM_preloadImages() {
var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i
<a.length; i++)
if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a
[i];}}
}
function slideshow() {
.....
}
//-->
</script>
</head>
<body onload="MM_preloadImages(''01.jpg'',''02.jpg'',''03.jpg '',''04.jpg'')">
</body>
</html>
推荐答案
文章< MP ***************** *******@news.tc.umn.edu> ;,特里
< go ************** @ REMOVE.yahoo.com>写道：
In article <MP************************@news.tc.umn.edu>, Terry
<go**************@REMOVE.yahoo.com> writes:
这是一个新手的问题。我想预加载4张图片，只有当所有4张图片都加载到浏览器的缓存中时，我才想开始一个
幻灯片放映（）功能。如果图像未完成加载到缓存中，幻灯片显示看起来不太好。
我不知道如何/何时调用slideshow（）函数来确保它<在预加载完成后启动。
This is a newbie''s question. I want to preload 4 images and only when
all 4 images has been loaded into browser''s cache, I want to start a
slideshow() function. If images are not completed loaded into cache,
the slideshow doesn''t look very nice.
I am not sure how/when to call the slideshow() function to make sure it
starts after the preload has been completed.
通过window.onload或body标签加载它：
window.onload = slideshow;
在脚本部分，或：
< body onload =" slideshow（）" ;>
该页面不会被视为已加载直到图片也被加载。
-
兰迪
load it via the window.onload or in the body tag:
window.onload = slideshow;
in the script section, or:
<body onload="slideshow()">
The page will not be considered "loaded" until the images are loaded as well.
--
Randy
通过window.onload或body标签加载它：
window.onload = slideshow;
在脚本部分，或者：
< body onload =" slideshow（）">
该页面不会被视为已加载直到图像加载为止。
load it via the window.onload or in the body tag:
window.onload = slideshow;
in the script section, or:
<body onload="slideshow()">
The page will not be considered "loaded" until the images are loaded as well.
兰迪，
我做了以上操作。但是，幻灯片开始在所有图像加载之前开始。
Terry
Randy,
I did the above. However, the slideshow starts before all the images
are loaded.
Terry
Terry写道：
Terry wrote:
通过window.onload或body标签加载它：
window.onload = slideshow;
在脚本部分，或：
< body onload =" slideshow（）">
页面将不被视为 ;装载"直到图像也被加载。
load it via the window.onload or in the body tag:
window.onload = slideshow;
in the script section, or:
<body onload="slideshow()">
The page will not be considered "loaded" until the images are loaded as well.
兰迪，
我做了以上的事情。但是，幻灯片开始在加载所有图像之前。
特里
Randy,
I did the above. However, the slideshow starts before all the images
are loaded.
Terry
< img src =" image1。 JPG"宽度= QUOT 1 QUOT; height =" 1">
< img src =" image2.jpg"宽度= QUOT 1 QUOT; height =" 1">
< img src =" image3.jpg"宽度= QUOT 1 QUOT; height =" 1">
< img src =" image4.jpg"宽度= QUOT 1 QUOT;每个图片的高度=" 1">
等等。然后使用body的onload或window.onload来
开始幻灯片放映。
或者，你的预加载脚本有问题。如果您无法正常工作，请将URL发布到
样本页面。
<img src="image1.jpg" width="1" height="1">
<img src="image2.jpg" width="1" height="1">
<img src="image3.jpg" width="1" height="1">
<img src="image4.jpg" width="1" height="1">
and so on for each image. Then use the body''s onload or window.onload to
start the slideshow.
Or, something is wrong with your preloading script. Post a URL to a
sample page if you can''t get it working.
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