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//检索页横竖图片自适应 function picFit(theImg,x){ theImg.style.visibility="hidden"; var w = theImg.offsetWidth; var h = theImg.offsetHeight; if(h>w){ theImg.style.height=x+"px"; theImg.style.width=''; }else{ theImg.style.height=''; theImg.style.width=x+"px"; theImg.style.marginTop=(x-theImg.offsetHeight)/2+"px"; } theImg.style.visibility="visible"; }