此代码存在三个问题。有人可以帮我吗？ 1.每当我选择图片时，我将无法选择其他图片。 2.上传之前，如何在其中添加文本字段和类别？
这是我的代码：
<div id="formdiv">
<h2>Multiple Image Upload Form</h2>
<form enctype="multipart/form-data" action="" method="post">
First Field is Compulsory. Only JPEG,PNG,JPG Type Image Uploaded. Image Size Should Be Less Than 100KB.
<div id="filediv"><input name="file[]" type="file" id="file"/></div>
<input type="button" id="add_more" class="upload" value="Add More Files"/>
<input type="submit" value="Upload File" name="submit" id="upload" class="upload"/>
</form>
<!------- Including PHP Script here ------>
<?php include "upload.php"; ?>
这是script.js
var abc = 0; // Declaring and defining global increment variable.
var max= 0; //Maximum number of images
$(document).ready(function() {
// To add new input file field dynamically, on click of "Add More Files" button below function will be executed.
$('#add_more').click(function() {
if (max< 2) {
$(this).before($("<div/>", {
id: 'filediv'
}).fadeIn('slow').append($("<input/>", {
name: 'file[]',
type: 'file',
id: 'file'
}), $("<br/><br/>")));
max++;
}
});
// Following function will executes on change event of file input to select different file.
$('body').on('change', '#file', function() {
if (this.files && this.files[0]) {
abc += 1; // Incrementing global variable by 1.
var z = abc - 1;
var x = $(this).parent().find('#previewimg' + z).remove();
$(this).before("<div id='abcd" + abc + "' class='abcd'><img id='previewimg" + abc + "' src=''/></div>");
var reader = new FileReader();
reader.onload = imageIsLoaded;
reader.readAsDataURL(this.files[0]);
$(this).hide();
$("#abcd" + abc).append($("<img/>", {
id: 'img',
src: 'x.png',
alt: 'delete'
}).click(function() {
$(this).parent().parent().remove();
}));
}
});
// To Preview Image
function imageIsLoaded(e) {
$('#previewimg' + abc).attr('src', e.target.result);
};
$('#upload').click(function(e) {
var name = $(":file").val();
if (!name) {
alert("First Image Must Be Selected");
e.preventDefault();
}
});
});