减小字体 增大字体
] 源码如下----------------------------------------------------------<html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><title>html-www.51windows.Net</title></head><body><script>var img=null;function s(){if(img)img.removeNode(true);img=document.createElement("img");img.style.position="absolute";img.style.visibility="hidden";img.attachEvent("onreadystatechange",orsc);img.attachEvent("onerror",oe);document.body.insertAdjacentElement("beforeend",img);img.src=inp.value;}function oe(){alert("cant load img");}function orsc(){if(img.readyState!="complete")return false;alert("高:"+img.offsetHeight+"\n宽:"+img.offsetWidth);}</script><input type="file" Name="file" id="inp" value="默认值"><br><input onclick="s()" type="button" value="点我一下给出要上传图片的大小及长、宽" name="button"></body></html>
[提示:你可先按照下面代码提示修改 上面部分代码,再按运行,此处看到的演示不完全正确]