window.onload?=?function(){
	imgLocation('container',?'box');
	window.onscroll?=?function(){
		var?imgData?=?{
			"data":[
				{"src"?:?"1.jpg"},
				{"src"?:?"2.jpg"},
				{"src"?:?"3.jpg"},
				{"src"?:?"4.jpg"},
				{"src"?:?"5.jpg"},
				{"src"?:?"6.jpg"}
			]
		};
		if(checkFlag()){
			var?oParent?=?$('container');
			for(var?i?=?0;?i?<?imgData.data.length;?i++){
				var?createdBox?=?document.createElement('div');
				createdBox.className?=?'box';
				oParent.appendChild(createdBox);
				var?imgBox?=?document.createElement('div');
				imgBox.className?=?'box_img';
				createdBox.appendChild(imgBox);
				var?img?=?document.createElement('img');
				img.src?=?'img/'?+?imgData.data[i].src;
				imgBox.appendChild(img);
			}
		}
		imgLocation('container',?'box');
	};
};
/**
	判斷何時滾動加載
*/
function?checkFlag(){
	var?oParent?=?$('container');
	var?oBoxs?=?getByClass(oParent,?'box');
	var?lastBoxDistance?=?oBoxs[oBoxs.length?-?1].offsetTop;
	var?scrollTop?=?document.documentElement.scrollTop?||?document.body.scrollTop;
	var?viewportHeight?=?document.documentElement.clientHeight?||?document.body.clientHeight;
	if(lastBoxDistance?<?(scrollTop?+?viewportHeight)){
		return?true;
	}
}
function?imgLocation(parent,?childClsName){
	var?oParent?=?$(parent);
	var?oBoxs?=?getByClass(oParent,?childClsName);
	//console.log(oBoxs);
	var?imgWidth?=?oBoxs[0].offsetWidth;
	var?cols?=?Math.floor(document.documentElement.clientWidth?/?imgWidth);
	oParent.style.cssText?=?"width:"?+?imgWidth?*?cols?+?"px;margin:0?auto";

	/*第一行盒子的高度集合*/
	var?boxHeightArr?=?[];
	for(var?i?=?0;?i?<?oBoxs.length;?i++){
		if(i?<?cols){
			boxHeightArr[i]?=?oBoxs[i].offsetHeight;?
		}else{
			//第一行中最小高度的值
			var?minHeight?=?Math.min.apply(null,??boxHeightArr);
			console.log(minHeight);
			var?indexOfMinHeight?=?getMinHeightIndex(boxHeightArr,?minHeight);
			console.log(indexOfMinHeight);
			oBoxs[i].style.position?=?'absolute';
			oBoxs[i].style.top?=?minHeight?+?'px';
			oBoxs[i].style.left?=?oBoxs[indexOfMinHeight].offsetLeft?+?'px';
			//更新高度
			boxHeightArr[indexOfMinHeight]?=?boxHeightArr[indexOfMinHeight]?+?oBoxs[i].offsetHeight;
		}
	}
}
function?getMinHeightIndex(boxHeightArr,?minHeight){
	for(var?height?in?boxHeightArr){
		if(boxHeightArr[height]?==?minHeight){
			return?height;
		}
	}
}
function?getByClass(parent,?childClsName){
	var?resultArr?=?[],
	?	allElements?=?parent.getElementsByTagName('*'),
	?	i?=?0;

	for(i?=?0;?i?<?allElements.length;?i++){
		if(allElements[i].className?==?childClsName){
			resultArr.push(allElements[i]);
		}
	}
	return?resultArr;
}
function?$(id){
	return?document.getElementById(id);
}

不錯。。。。