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if(ImgObj.readyState!="complete"){
setTimeout("CheckProperty(FileObj)",500);
return false;
}
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档 </title>
</head>
<body>
<script type="text/javascript">
var imgSize = 1024 * 100; //最大100K
function checkImgSize(){
var file = document.getElementById("fuPhoto");
if(file.value != ""){
//检测类型
var val = file.value;
if(/^.*?\.(gif|png|jpg|JPG|JPEG|jpeg|bmp)$/.test(val)){
}else{
alert("只能上传gif, png, jpg, bmp格式的图片");
// return false;
}
var img = new Image();
img.onreadystatechange = function(){
if(img.readyState == "complete"){
if(img.fileSize <=0 || img.fileSize > imgSize){
alert("当前文件大小" + img.fileSize / 1024 + "KB, 超出最大限制 " + imgSize / 1024 + "KB");
}else{
alert("OK");
return true;
}
}
}
img.src = val;
}else{
alert("请选择上传的文件!");
return false;
}
}
</script>
<input type="file" id="fuPhoto" />
<input type="submit" value="上传" onclick="return checkImgSize()" />
</body>
</html>