gallery 带删除按钮的图片预览，主要是配合图片上传使用

Kind: global function

ParamTypeDescription
urlstringgallery显示的图片的url
[options]object配置项
[options.className]string自定义类名
[options.onDelete]function点击删除图片时的回调

Example

var gallery = weui.gallery(url, {
    className: 'custom-classname',
    onDelete: function(){
        if(confirm('确定删除该图片？')){ console.log('删除'); }
        gallery.hide(function() {
             console.log('`gallery` has been hidden');
         });
    }
});