问尝试使用jQuery.data() API在jQuery插件中缓存函数

EN

$.fn.myplugin = function (action) {
    if (actions[action]) {
        return actions[action].apply(this, Array.prototype.slice.call(arguments, 1));
    } else if (typeof action === 'object' || !action) {
        return actions.init.apply(this, arguments);
    } else {
        $.error('Action ' + action + ' does not exist on myplugin');
        return this;
    }
};

var actions = {
    init: function (options) {
        if (this.length) {
            var settings = $.extend({}, $.fn.myplugin.defaults);
            return this.each(function () {
                if (options) {
                    settings = $.extend(settings, options);
                }

                $(this).data('myplugin', new MyPlugin($(this), settings));
            });
        } else {
            throw new Error('unable to init undefined');
        }
    },
    update: function () {
        ...
    },
    destroy: function () {
        ...
    }
};

function MyPlugin($el, settings) {
    var $content = $('.content', $el);

    var a = function setup() { ... };

    var b = function hold() { ... }

    $content.on({
        'click': function(e) { ... },
        'hover': function(e) { ... }
    });
}