jQuery实现Select自动选择默认值

// 
// 
// the Select target Auto Select value extension plugin 
// author：hotboy
// -------------------------------------------------------------------------- // 
(function ($) { 
    $.extend($.fn, { 
         
        // 
        AutoSelect: function (options) { 

            // default options of plugin 
            var defaults = { 
                atr: "val", 
                filter: "select" 
            } 

            // deep copy $.extend(isDeepCopy,default_src,ext1,ext2,ext3,ext4,......); 
            var new_options = $.extend(true, defaults, options); 
                         
            var $this = $(this); 
            $this.each(function () { 
                var $t = $(this); 
                // alert($t.prop("tagName".toLocaleUpperCase())); 
                if (new_options.filter.toLocaleUpperCase() != $t.prop("tagName")) { 
                    $t.val($t.attr(defaults.atr)); 
                } 
            }) 
        } 
    }); 
})(jQuery);

$(function(){
    $("标签选择器").AutoSelect({atr:"选中值attribute",filter:"过滤标签类型,不执行绑定、"});
});

$(function(){

    $("select[val]").AutoSelect();

});