访问函数中的对象（$，window，document，undefined）

Question

$(function ($, window, document, undefined) {
  var pluginName = "countdown360",
    defaults = {
      radius: 15.5,                    
      strokeStyle: "#477050",          
      strokeWidth: undefined,        
      fillStyle: "#8ac575",           
      fontColor: "#477050",            
      fontFamily: "sans-serif",       
      fontSize: undefined,            
      fontWeight: 700,                
      autostart: true,                 
      seconds: 100,                    
      label: ["percent", "percent"],    
      startOverAfterAdding: true,    
      smooth: true,                   
      onComplete: function () {}
};

您能帮我解决一下如何访问对象默认属性之一吗？