Javascript---Immediately-Invoked Function Expression (IIFE)立即执行的函数表达式
1.一下是几种形式的函数调用:
各种调用的效率:在这编文章中有谈到:
http://suqing.iteye.com/blog/1981591
// Either of the following two patterns can be used to immediately invoke
// a function expression, utilizing the function'