Uploadify 之使用

uploadify 3.2.1是 jQuery提供的一个上传插件，其参数详解见 http://www.cnblogs.com/yangy608/p/3915349.html

这里列举一个实际应用的例子：其实是摘自onethink的一段代码，关靠参数，没有实际例子，对于我等初学者实为不利

<script type="text/javascript" src="/uploadify/jquery.min.js"></script>
<script type="text/javascript" src="/uploadify/jquery.uploadify.min.js"></script>
<input type="file" id="upload_picture_{$field.name}">
<input type="hidden" name="{$field.name}" id="cover_id_{$field.name}" value="{$data[$field['name']]}"/>
<div class="upload-img-box">

<div class="upload-pre-item"><img src="{$data[$field['name']]|get_cover='path'}"/></div>

</div>
<script type="text/javascript">
                                //上传图片
                                /* 初始化上传插件 */
                                $("#upload_picture_{$field.name}").uploadify({
                                    "height"          : 30,
                                    "swf"             : "__STATIC__/uploadify/uploadify.swf",
                                    "fileObjName"     : "download",
                                    "buttonText"      : "上传图片",
                                    "uploader"        : "{:U('File/uploadPicture',array('session_id'=>session_id()))}",
                                    "width"           : 120,
                                    'removeTimeout'      : 1,
                                    'fileTypeExts'      : '*.jpg; *.png; *.gif;',
                                    "onUploadSuccess" : uploadPicture{$field.name},
                                    'onFallback' : function() {
                                        alert('未检测到兼容版本的Flash.');
                                    }
                                });
                                function uploadPicture{$field.name}(file, data){
                                    var data = $.parseJSON(data);
                                    var src = '';
                                    if(data.status){
                                        $("#cover_id_{$field.name}").val(data.id);
                                        src = data.url || '__ROOT__' + data.path
                                        $("#cover_id_{$field.name}").parent().find('.upload-img-box').html(
                                            '<div class="upload-pre-item"><img src="' + src + '"/></div>'
                                        );
                                    } else {
                                        updateAlert(data.info);
                                        setTimeout(function(){
                                            $('#top-alert').find('button').click();
                                            $(that).removeClass('disabled').prop('disabled',false);
                                        },1500);
                                    }
                                }
</script>