js模块化

//blog.js var blog = {};//初始化命名空间 blog.utility = {     Version : 'blog.utility version 0.0.1',     sayHello: function (str)     {         alert('hello : '+str +' by ' + this.getVersion());     },     getVersion :function ()     {          return this.Version;     } } ////////////////////////// //color.js var color = {};//初始化命名空间 color.utility= {     Version : 'color.utility version 0.0.1',     sayHello: function (str)     {         alert('hello : '+str +' by ' + this.getVersion());     },     getVersion :function ()     {          return this.Version;     } } //////////////////////// //调用 with (color.utility) {     sayHello('fzg');     alert(getVersion()); } with (blog.utility) {     sayHello('abc'); }