HTML样式
<img class="rankuser pic" />
---------------------------
<div id="outerdiv" style="position:fixed;top:0;left:0;background:rgba(0,0,0,0.7);z-index:2;width:100%;height:100%;display:none;">
<div id="innerdiv" style="position:absolute;">
<img id="bigimg" style="border:5px solid #fff;" src="" />
</div>
JS
<script type="text/javascript">
$(function () {
$(".pic").click(function () {
var _this = $(this);
imgShow("#outerdiv", "#innerdiv", "#bigimg", _this);
});
});
function imgShow(outerdiv, innerdiv, bigimg, _this) {
var src = _this.attr("src");
$(bigimg).attr("src", src);
$("<img/>").attr("src", src).load(function () {
var windowW = $(window).width();
var windowH = $(window).height();
var realWidth = this.width;
var realHeight = this.height;
var imgWidth, imgHeight;
var scale = 0.8;
if (realHeight > windowH * scale) {
imgHeight = windowH * scale;
imgWidth = imgHeight / realHeight * realWidth;
if (imgWidth > windowW * scale) {
imgWidth = windowW * scale;
}
} else if (realWidth > windowW * scale) {
imgWidth = windowW * scale;
imgHeight = imgWidth / realWidth * realHeight;
} else {
imgWidth = realWidth;
imgHeight = realHeight;
}
$(bigimg).css("width", imgWidth);
var w = (windowW - imgWidth) / 2;
var h = (windowH - imgHeight) / 2;
$(innerdiv).css({ "top": h, "left": w });
$(outerdiv).fadeIn("fast");
});
$(outerdiv).click(function () {
$(this).fadeOut("fast");
});
}
</script>
js是之前在网上找的, 已不记得来源了,此处记录下备用.
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