谁帮我看看这段代码应该怎么弄

Question

本帖最后由 zyixing 于 2012-11-22 12:08:03 编辑

Answer 1

function imgFix(widthRestriction,heightRestriction,InclassName){
 var allElements = document.getElementsByTagName('*')     
 for(var i = 0; i < allElements.length; i++){     
if(allElements[i].className.indexOf(InclassName) >= 0){       
var imgElements = allElements[i].getElementsByTagName('img');       
for(var j=0; j < imgElements.length; j++){         
if( imgElements[j].width > widthRestriction || imgElements[j].height > heightRestriction ){           
if( imgElements[j].width > imgElements[j].height){             
imgElements[j].height = imgElements[j].height*(widthRestriction/imgElements[j].width);             
imgElements[j].width = widthRestriction;
}else{             
imgElements[j].width = imgElements[j].width*(heightRestriction/imgElements[j].height);             
imgElements[j].height = heightRestriction;
}        
}                 
if( imgElements[j].height < heightRestriction ){                   
imgElements[j].style.paddingTop = ( heightRestriction -imgElements[j].height ) /2 + "px";                 
}       
} /*for j*/     
}   
}/*for i*/ }是要这样的吗？把相应的参数放的位置一变就可以了

Answer 2

我在后面这样写了为什么不执行imgFix(80,100,'.img_list')

Answer 3

imgFix(80,100,'.img_list') 
多了一个.