用 document.readyState == "complete" 判断页面是否加载完成。
2008-07-11 18:36
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传回XML 文件资料的目前状况。
基本语法
intState = xmlDocument.readyState;
说 明
这个属性是只读的,传回值有以下的可能:
0-UNINITIALIZED:XML 对象被产生,但没有任何文件被加载。
1-LOADING:加载程序进行中,但文件尚未开始解析。
2-LOADED:部分的文件已经加载且进行解析,但对象模型尚未生效。
3-INTERACTIVE:仅对已加载的部分文件有效,在此情况下,对象模型是有效但只读的。
4-COMPLETED:文件已完全加载,代表加载成功。
范 例
alert("The readyState property is " + xmlDoc.readyState);
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
<script language="javascript">
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
if (document.readyState=="complete")
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
AdjustImageSize();
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
document.onreadystatechange = function()
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
if (document.readyState == "complete")
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
AdjustImageSize();
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
function AdjustImageSize()
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
var imageWidth = document.all["SendPic"].width;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
var imageHeight = document.all["SendPic"].height;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
if (imageWidth == 0 && imageHeight == 0)
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
document.write ("图片下载失败,请刷新!");
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
return;
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
if (imageWidth > 160 || imageHeight > 160)
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
if (imageWidth > imageHeight)
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
k = 160 / imageWidth;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
imageHeight = imageHeight * k;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
imageWidth = 160;
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
else
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
k = 160 / imageHeight;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
imageWidth = imageWidth * k;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
imageHeight = 160;
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
document.all["ImgResized"].value = "1";
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
document.all["SendPic"].width = imageWidth;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
document.all["SendPic"].height = imageHeight;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
document.all["ImgWidth"].value = imageWidth;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
document.all["ImgHeight"].value = imageHeight;
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
</script>
补充:
如果有这么一段代码:
If(document.all && document.body.readyState=="complete"){
test();
}
那么就很有意义了, 上面这段代码是在页面加载完成后才执行test()函数. 如果没有这个判断,页面一开始加载到这个语句段就执行这个函数.
基本语法
intState = xmlDocument.readyState;
说 明
这个属性是只读的,传回值有以下的可能:
0-UNINITIALIZED:XML 对象被产生,但没有任何文件被加载。
1-LOADING:加载程序进行中,但文件尚未开始解析。
2-LOADED:部分的文件已经加载且进行解析,但对象模型尚未生效。
3-INTERACTIVE:仅对已加载的部分文件有效,在此情况下,对象模型是有效但只读的。
4-COMPLETED:文件已完全加载,代表加载成功。
范 例
alert("The readyState property is " + xmlDoc.readyState);
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
<script language="javascript">
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
if (document.readyState=="complete")
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
AdjustImageSize();
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
document.onreadystatechange = function()
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
if (document.readyState == "complete")
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
AdjustImageSize();
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
function AdjustImageSize()
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
var imageWidth = document.all["SendPic"].width;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
var imageHeight = document.all["SendPic"].height;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
if (imageWidth == 0 && imageHeight == 0)
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
document.write ("图片下载失败,请刷新!");
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
return;
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
if (imageWidth > 160 || imageHeight > 160)
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
if (imageWidth > imageHeight)
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
k = 160 / imageWidth;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
imageHeight = imageHeight * k;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
imageWidth = 160;
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
else
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
k = 160 / imageHeight;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
imageWidth = imageWidth * k;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
imageHeight = 160;
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
document.all["ImgResized"].value = "1";
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
document.all["SendPic"].width = imageWidth;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
document.all["SendPic"].height = imageHeight;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
document.all["ImgWidth"].value = imageWidth;
![](http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
document.all["ImgHeight"].value = imageHeight;
![](http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
</script>
补充:
如果有这么一段代码:
If(document.all && document.body.readyState=="complete"){
test();
}
那么就很有意义了, 上面这段代码是在页面加载完成后才执行test()函数. 如果没有这个判断,页面一开始加载到这个语句段就执行这个函数.
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