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自己做的图片延迟加载的代码
function onImgListScroll(divImgList) { var minTop = divImgList.scrollTop - 2; var maxTop = divImgList.scrollTop + divImgList.offsetHeight + 2; var imgItems = divImgList.getElementsByTag...
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js控制div等对象渐隐
var pacity = 100, add = -10, delay = 30, timerID;function setMessageDivOpacity() { opacity += add; if (ie4) { divMsg.style.filter = "alpha(opacity=" + opacity + ")"; } e...
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关于merge into 的使用
merge into 的用法如下：merge into t_AAA ausing (select t.id, t.time from t_BBB t) bon (a.id=b.id)when matched thenupdate set a.last_time=b.time where b.time>a.last_timewhen not matched then...
