繁體中文当前位置: 首页 > 图文教程 > 网络编程 > Javascript > 用js实现预览待上传的本地图片
- Javascript
- Add a Table to a Word Document
- Add Formatted Text to a Word Document
- 用jscript实现新建word文档
- 用jscript实现新建和保存一个word文档
- Open and Print a Word Document
- Use Word to Search for Files
- Convert Seconds To Hours
- Sample script that deletes a SQL Server database
- Sample script that displays all of the users in a given SQL Server DB
- firefox中用javascript实现鼠标位置的定位
- div+css实现鼠标放上去，背景跟图片都会变化。
- Locate a File Using a File Open Dialog Box
- Save a File Using a File Save Dialog Box
- 用jscript实现列出安装的软件列表
- List the Stored Procedures in a SQL Server database
- Display SQL Server Login Mode
- Display SQL Server Version Information
- List all the Databases on a SQL Server
- 用jscript启动sqlserver
- Stop SQL Server
Javascript 中的 用js实现预览待上传的本地图片
出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-09-12 浏览: 213 ::
收藏到网摘: n/a
<form name="form5" id="form5" method="post" action="#">
<input type="file" name="file5" id="file5" onchange="preview5()"/>
</form>
<script type="text/javascript">
function preview5(){
var x = document.getElementById("file5");
if(!x || !x.value) return;
var patn = /\.jpg$|\.jpeg$|\.gif$/i;
if(patn.test(x.value)){
var y = document.getElementById("img5");
if(y){
y.src = "file://localhost/" + x.value;
}else{
var img=document.createElement("img"); img.setAttribute("src","file://localhost/"+x.value);
img.setAttribute("width","120");
img.setAttribute("height","90");
img.setAttribute("id","img5");
document.getElementById("form5").appendChild(img);
}
}else{
alert("您选择的似乎不是图像文件。");
}}
</script>
评论 (0) All
