错误1:
onload="imgdisplay(this,90,90);",这必然是readyState == "complete",所以if(pimg.readyState == "complete" )这句没有意义
错误2:
pimg.width.这无法取值,应该是pimg.offsetWidth
错误3:
pimg.style.width=w;它应该取字符的值,所以应该是
pimg.style.width=w + "px"; 或
pimg.style.pixelWidth=w;
onload="imgdisplay(this,90,90);",这必然是readyState == "complete",所以if(pimg.readyState == "complete" )这句没有意义
错误2:
pimg.width.这无法取值,应该是pimg.offsetWidth
错误3:
pimg.style.width=w;它应该取字符的值,所以应该是
pimg.style.width=w + "px"; 或
pimg.style.pixelWidth=w;
http://community.csdn.net/Expert/topic/4873/4873535.xml?temp=.1562921
var img = new Image(); img.src=pimg.src;
var w = iw;
var h = ih;
if(img.width >= iw && img.width > img.height)
{
h = img.height * iw / img.width;
}
else
{
if(img.height >= ih)
{
h = ih;
w = img.width * ih / img.height;
}
} pimg.width=w;
pimg.height=h;
pimg.style.display="";
}
//]]>
</script>
<img src="http://zi.csdn.net/csdn20060705.gif" border="0" style="display:none" onload="imgdisplay(this,90,90);">
function DrawImage(ImgD){
w=120;
h=100;
var image=new Image();
image.src=ImgD.src;
if(image.width>0 && image.height>0){
flag=true;
if(image.width/image.height>= w/h){
if(image.width>w){
ImgD.width=w;
ImgD.height=(image.height*w)/image.width;
}else{
ImgD.width=image.width;
ImgD.height=image.height;
}
ImgD.alt=image.width+"×"+image.height;
}
else{
if(image.height>h){
ImgD.height=h;
ImgD.width=(image.width*h)/image.height;
}else{
ImgD.width=image.width;
ImgD.height=image.height;
}
ImgD.alt=image.width+"×"+image.height;
}
}
}
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的offsetWidth和offsetHeight,我没有测试,不知道是不是可以得到图片的原始尺寸
function resizeImg(object,iw,ih){
if(object.readyState=="complete"){
var imgWidth=iw;
var imgHeight=ih;
var objImgWidth=object.offsetWidth;
var objImgHeight=object.offsetHeight;
var WidthHeightRate=objImgWidth/objImgHeight;
//alert(WidthHeightRate);
if(WidthHeightRate>1){
imgWidth=imgWidth;
imgHeight=imgWidth/WidthHeightRate;
}
if(WidthHeightRate==1){
imgWidth=imgWidth;
imgHeight=imgHeight;
}
if(WidthHeightRate<1){
imgHeight=imgHeight;
imgWidth=imgHeight*WidthHeightRate;
}
object.style.width=imgWidth;
object.style.height=imgHeight;
//object.style.display="";
}
}<img src="<%=rs_n("zhuang")%>" border="0" style="display:" onload="resizeImg(this,90,90);">
浏览器就可以自动调整图片的显示大小为90x90<img src="<%=rs_n("zhuang")%>" width=90>
浏览器就可以自动调整图片的显示宽度为90,高度按比例缩放
劳民伤财,不知道你为什么要这样做!<img src="<%=rs_n("zhuang")%>" width=90 height=90>
浏览器就可以自动调整图片的显示大小为90x90<img src="<%=rs_n("zhuang")%>" width=90>
浏览器就可以自动调整图片的显示宽度为90,高度按比例缩放------------------------这样的话也会按比例,但纠经是按高度的比例还是宽度的比例不好确定,哪高度数值大于宽度,还按宽度90的比例,表格就会被撑破了~~~~~