javascript生成img标签的3种实现方法(对象、方法、html)

<div id="d1"></div><script>//HTMLfunction a(){document.getElementById("d1").innerHTML="<img src='http://baike.baidu.com/cms/rc/240x112dierzhou.jpg'>";}a();//方法function b(){var d1=document.getElementById("d1");var img=document.createElement("img");img.src="http://baike.baidu.com/cms/rc/240x112dierzhou.jpg";d1.appendChild(img);}b();//对象function c(){var cc=new Image();cc.src="http://baike.baidu.com/cms/rc/240x112dierzhou.jpg";document.getElementById("d1").appendChild(cc);}c();</script>