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带有图片预览功能的上传表单

2017-08-16 18:22 417 查看

<html>
<head>
<meta charset="utf-8">
<title>图片上传</title>
<script>
function viewmypic(mypic,upfile) {
if(upfile.files && upfile.files[0])
{
mypic.style.display="";
//火狐下，直接设img属性
//mypic.src = upfile.files[0].getAsDataURL();

//火狐7以上版本不能用上面的getAsDataURL()方式获取，需要一下方式
mypic.src = window.URL.createObjectURL(upfile.files[0]);
}
else
{
//IE下
if (upfile.value){
mypic.src=upfile.value;
mypic.style.display="";
mypic.border=1;
}
}
}
</script>
</head>
<body>
<center>
<form >
<input name="upfile" type="file" id="upfile" size="40" onchange="viewmypic(showimg,this.form.upfile);" />
<br />
</form>
<img name="showimg" id="showimg" src="" style="display:none;" alt="预览图片" />
<br />
</div>
<div style="display:none">
</div>
</center>
</body>
</html>

上传图片的时候，可以直观看图片是否正确

上传多个:

<html>
<head>
<meta charset="utf-8">
<title>图片上传</title>
<script>
function viewmypic1(mypic,upfile1) {
if(upfile1.files && upfile1.files[0])
{
mypic.style.display="";
//火狐下，直接设img属性
//mypic.src = upfile1.files[0].getAsDataURL();

//火狐7以上版本不能用上面的getAsDataURL()方式获取，需要一下方式
mypic.src = window.URL.createObjectURL(upfile1.files[0]);
}
else
{
//IE下
if (upfile1.value){
mypic.src=upfile1.value;
mypic.style.display="";
mypic.border=1;
}
}
}
</script>
<script>
function viewmypic2(mypic,upfile2) {
if(upfile2.files && upfile2.files[0])
{
mypic.style.display="";
//火狐下，直接设img属性
//mypic.src = upfile2.files[0].getAsDataURL();

//火狐7以上版本不能用上面的getAsDataURL()方式获取，需要一下方式
mypic.src = window.URL.createObjectURL(upfile2.files[0]);
}
else
{
//IE下
if (upfile2.value){
mypic.src=upfile2.value;
mypic.style.display="";
mypic.border=1;
}
}
}
</script>
<script>
function viewmypic3(mypic,upfile3) {
if(upfile3.files && upfile3.files[0])
{
mypic.style.display="";
//火狐下，直接设img属性
//mypic.src = upfile3.files[0].getAsDataURL();

//火狐7以上版本不能用上面的getAsDataURL()方式获取，需要一下方式
mypic.src = window.URL.createObjectURL(upfile3.files[0]);
}
else
{
//IE下
if (upfile3.value){
mypic.src=upfile3.value;
mypic.style.display="";
mypic.border=1;
}
}
}
</script>
</head>
<body>
<center>
<form >
<input name="upfile" type="file" id="upfile1" size="40" onchange="viewmypic1(showimg1,this.form.upfile1);" /><br>
<input name="upfile" type="file" id="upfile2" size="40" onchange="viewmypic2(showimg2,this.form.upfile2);" /><br>
<input name="upfile" type="file" id="upfile3" size="40" onchange="viewmypic3(showimg3,this.form.upfile3);" /><br>
</form>
<img name="showimg1" id="showimg1" src="" style="display:none;" alt="预览图片" /><br>
<img name="showimg2" id="showimg2" src="" style="display:none;" alt="预览图片" /><br>
<img name="showimg3" id="showimg3" src="" style="display:none;" alt="预览图片" /><br>
<br />
</div>
<div style="display:none">
</div>
</center>
</body>
</html>

css input[type=file] 样式美化(input上传文件样式 )

http://blog.csdn.net/haibo0668/article/details/78499576

美化input按钮多图片上传带预览图片功能

<html>
<head>
<meta charset="utf-8">
<title>图片上传</title>
<style>
/*样式1*/
.a-upload {
padding: 4px 10px;
height: 20px;
line-height: 20px;
position: relative;
cursor: pointer;
color: #888;
background: #fafafa;
border: 1px solid #ddd;
border-radius: 4px;
overflow: hidden;
display: inline-block;
*display: inline;
*zoom: 1
}

.a-upload  input {
position: absolute;
font-size: 100px;
right: 0;
top: 0;
opacity: 0;
filter: alpha(opacity=0);
cursor: pointer
}

.a-upload:hover {
color: #444;
background: #eee;
border-color: #ccc;
text-decoration: none
}
/*样式2*/
.file {
position: relative;
display: inline-block;
background: #D0EEFF;
border: 1px solid #99D3F5;
border-radius: 4px;
padding: 4px 12px;
overflow: hidden;
color: #1E88C7;
text-decoration: none;
text-indent: 0;
line-height: 20px;
}
.file input {
position: absolute;
font-size: 100px;
right: 0;
top: 0;
opacity: 0;
}
.file:hover {
background: #AADFFD;
border-color: #78C3F3;
color: #004974;
text-decoration: none;
}
</style>
<script>
function viewmypic1(mypic,upfile1) {
if(upfile1.files && upfile1.files[0])
{
mypic.style.display="";
//火狐下，直接设img属性
//mypic.src = upfile1.files[0].getAsDataURL();

//火狐7以上版本不能用上面的getAsDataURL()方式获取，需要一下方式
mypic.src = window.URL.createObjectURL(upfile1.files[0]);
}
else
{
//IE下
if (upfile1.value){
mypic.src=upfile1.value;
mypic.style.display="";
mypic.border=1;
}
}
}
</script>
<script>
function viewmypic2(mypic,upfile2) {
if(upfile2.files && upfile2.files[0])
{
mypic.style.display="";
//火狐下，直接设img属性
//mypic.src = upfile2.files[0].getAsDataURL();

//火狐7以上版本不能用上面的getAsDataURL()方式获取，需要一下方式
mypic.src = window.URL.createObjectURL(upfile2.files[0]);
}
else
{
//IE下
if (upfile2.value){
mypic.src=upfile2.value;
mypic.style.display="";
mypic.border=1;
}
}
}
</script>

</head>
<body>
<center>
<form >
<a href="javascript:;" class="file"><input name="sfzfj[]" type="file" id="upfile1" size="40" onchange="viewmypic1(showimg1,this.form.upfile1);" />正面</a>
<a href="javascript:;" class="file"><input name="sfzfj[]" type="file" id="upfile2" size="40" onchange="viewmypic2(showimg2,this.form.upfile2);" />反面</a>
</form>
<img name="showimg1" id="showimg1" src="" style="display:none; width:20px" alt="预览图片" /><br>
<img name="showimg2" id="showimg2" src="" style="display:none;" alt="预览图片" /><br>
<img name="showimg3" id="showimg3" src="" style="display:none;" alt="预览图片" /><br>
<br />
</div>
<div style="display:none">
</div>
</center>
</body>
</html>

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