1.IIFE：
Immediately-Invoked function Expression 函数模块自调用
2.代码实现
<!DOCTYPE html><html lang="en"><head> ???<meta charset="UTF-8"> ???<title>Title</title> ???<div id="demo">的么的事</div></head><body><script> ???(function () { ???????document.write("好啊好啊"); ???})(); ???//定义$ ???(window.$=function (args) { ???????//定义val ???????function val() { ???????????return getElem().innerHTML; ???????} ???????function getElem() { ???????????if(args!=null){ ???????????????if(args.indexOf("#")==0){ ???????????????????return document.getElementById(args.substring(args.indexOf("#")+1,args.length)); ???????????????} ???????????} ???????} ???????return { ???????????val:val ???????} ???})(); ???document.write($("#demo").val());</script></body></html>js中的写出想jquery中的函数一样调用
原文地址：http://www.cnblogs.com/lonecloud/p/7469429.html