java的主体函数怎么设置

(function(window,undefined){  var_toString = {}.toString,  _is,  _writeScript,  _listUrl,  _scriptMap = {  method_url : {},//method --> url <method : url ><1 : 1 >  url_method : {},//url --> method <url : [method,method] ><1 : n >  visited : {},  writted : {},  wait_write:[]  },  _readyFnx = [],  alfred = function(){//自己单独使用也可以。象jquery  alfred.ready.apply(window,arguments);  };  //私有函数开始  _is = function(it,type){//复杂的可以自己进行设置。正则匹配。  returntype.test(_toString.call(it).toLowerCase());  };  _waitReady = function(){  //等结束。如果结束了。直接跳出循环。其实就是利用JS的这个特性。  if(document.readyState != "loaded" &&document.readyState != "complete")  {  vartime = setTimeout(arguments.callee,0);  return;  }  clearTimeout(time);  }  _checkReady = function(){  //处理参数  for(vari=0;i<arguments.length;i++)  {  _readyFnx.push(arguments[i]);  }  varcallback = _readyFnx.shift();  //支持高级事件的  if(document.addEventListener)  {  document.addEventListener("DOMContentLoaded",function(){  _waitReady();  document.removeEventListener("DOMContentLoaded",arguments.callee,false);  callback.apply(window,_readyFnx);  });  returnthis;  }  //支持事件则用事件处理 IE  if(document.attachEvent)  {  document.attachEvent( "onreadystatechange", function(){  _waitReady();  document.detachEvent( "onreadystatechange",arguments.callee);  callback.apply(window,_readyFnx);  });  returnthis;  }  //不支持的则看不在 iframe 下时候的特殊属性。看 JSCRIPT MSDN。  if(document.documentElement.doScroll &&window == window.top)  {  try {  document.documentElement.doScroll("left","top");  }  catch(e)  {  setTimeout(arguments.callee, 0);  return;}  callback.apply(window,_readyFnx);  returnthis;  }  };  _listUrl = function(){  varl = _scriptMap.visited,i;  //对我们的URL 进行筛选 。主要防止多次添加访问过的依赖库。  for(i inl){  if(!_scriptMap.writted[i])  {  _scriptMap.wait_write.push(i);  }  }  _scriptMap.wait_write.reverse();  _writeScript();  };  _writeScript = function(){  //写入我们的JS 了。  varhead = document.getElementsByTagName("head").item(0),len = _scriptMap.wait_write.length;  for(vari;_scriptMap.wait_write.length&&(i=_scriptMap.wait_write.shift());) {  varscript = document.createElement("script"),  url = i || "";  script.setAttribute("async",true);//高级浏览器支持HTML5特性  script.setAttribute("type","text/javascript");  script.setAttribute("src",url);  head.appendChild(script);  _scriptMap.writted[url] = true;//这里无所谓，只要有这个URL就可以  };  };  alfred.extend = function(){  vardeep = false,  len,  options, name, src, copy, copyIsArray, clone,  target = arguments[0] || {},  i = 1;  len = arguments.length;  if(!len)  {  returnthis;  }  if(alfred.isBoolean(target))  {  deep = arguments[0];  to = arguments[1];  i = 2;  }  if(!(alfred.isObject(target) || alfred.isFunction(target))) {  target = {};  }  if(len = i)  {  target = this;  --i;  }  for(;i<len;i++) {  if((options=arguments[i])!==null)  {  for(name inoptions) {  copy = options[name];  src = target[name];  if(src){throw"Becareful : you are rewrite the "+_handle+"."+name+"!"}  if(copy===target) {continue}  if(deep &&copy; &&(alfred.isObject(copy) || (copyIsArray = alfred.isArray(copy))))  {  if(copyIsArray)  {  copyIsArray = false;  clone = src &&alfred.isArray(src) ? src : [];  }  else {  clone = src &&alfred.isObject(src) ? src : [];  }  target[ name ] = alfred.extend( deep, clone, copy );  }  elseif( copy !== undefined )  {  target[name] = copy;  }  }  }  }  };  alfred.isNumber = function(it){return_is(it,/^[object number]$/)};  alfred.isString = function(it){return_is(it,/^[object string]$/)};  alfred.isFunction = function(it){return_is(it,/^[object function]$/)};  alfred.isObject = function(it){return_is(it,/^[object object]$/)};  alfred.isArray = function(it){return_is(it,/^[object array]$/)};  alfred.isBoolean = function(it){returntypeofit ===&#39;boolean&#39;};  alfred.isDom = function(it){return_is(it,/^[object htmlw+]$/)};  alfred.extend({  author : "alfred",  version : 1.01,  global : window,  doc : window.document,  reset : function(it){alfred.global[it]=alfred;},  log : function()  {  if(window.console &&console.log)  {  returnconsole.log.apply(window,arguments)  }  },  error : function(name,value)  {  throw{"name":name,"message":value};  },  require : function(method)  {  varm2u = _scriptMap.method_url,  u2m = _scriptMap.url_method,  r;  if(!(m2u[method])){throw"Error : you need setMethod first"}  if(!_scriptMap.visited[m2u[method][0]] &&!_scriptMap.writted[m2u[method][0]]) {  //haven&#39;t be visited or write  _scriptMap.visited[m2u[method][0]] = true;  //use an beautiful code in here  for(; m2u[method][1].length &&(r=m2u[method][1].shift());)  {  alfred.require(r);  }  _listUrl();  }  },  setMethod : function(url,method,rely)  {  vari, method = alfred.isArray(method)? method:[method],  rely = alfred.isArray(rely)?rely:[rely];  if(url &&!_scriptMap.url_method[url]){  _scriptMap.url_method[url] = method;   for(;method.length&&(i=method.shift());) {  _scriptMap.method_url[i] = {"0" : url, "1" : rely};  }  returnthis;  }  throw"Error : you are setMethod in an old method";  },  ready : function(){  _checkReady.apply(window,arguments);  },  each : function(arg,callback){  for(vari inarg){  if(arg[i])  {  callback.call(arg[i],i);  }  }  returnarg;  }  });  window.alfred = alfred;  })(window)

alfred.setMethod("basic.js",["alfred","alfred.global","alfred.doc","alfred.reset","alfred.log","alfred.isNumber",  "alfred.isFunction","alfred.isArray","alfred.isObject","alfred.isString","alfred.isBoolean",  "alfred.require","alfred.setMethod","alfred.extend"],[]);

<!DOCTYPE html> <html> <head> <title> </title> </head> <body> <script type="text/javascript" src="base.js"></script> <script type="text/javascript" src="deps.js"></script> <script type="text/javascript"> alfred.reset("$");  $.require("alfred.dom");  $(function(){  vara = $.dom("<div id=&#39;test&#39; style=&#39;width:200px;height:200px;background:red;&#39;> adf</div>");  $.dom("body").prepend(a);  })  </script> </body> </html>