[04]JS获取文件大小方法
- </pre><pre name="code" class="html"><input id="file" type="file">
- <input id="Button1" type="button" value="button" onclick="check()">
- <script>
- window.check=function(){
- var input = document.getElementById("file");
- if(input.files){
- //读取图片数据
- var f = input.files[0];
- var reader = new FileReader();
- reader.onload = function (e) {
- var data = e.target.result;
- //加载图片获取图片真实宽度和高度
- var image = new Image();
- image.onload=function(){
- var width = image.width;
- var height = image.height;
- alert(width+'======'+height+"====="+f.size);
- };
- image.src= data;
- };
- reader.readAsDataURL(f);
- }else{
- var image = new Image();
- image.onload =function(){
- var width = image.width;
- var height = image.height;
- var fileSize = image.fileSize;
- alert(width+'======'+height+"====="+fileSize);
- }
- image.src = input.value;
- }
- }
- </script>
转载 :http://blog.csdn.net/u014236259/article/details/52885591