日期:2014-05-16 浏览次数:20370 次
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gbk"> <title></title> <link rel="stylesheet" type="text/css" href="../lib/ext-all.css" /> <script type="text/javascript" src="../lib/ext-base.js"></script> <script type="text/javascript" src="../lib/ext-all.js"></script> <script type="text/javascript" src="helloword.js"></script> </head> <script type="text/javascript"> Ext.namespace("hb.com"); hb.com.Person = function(cfg){ Ext.apply(this,cfg); }; Ext.apply(hb.com.Person.prototype,{ job:"无", print:function(){ alert(String.format("姓名:{0},性别:{1},工作:{2}",this.name,this.sex,this.job)); } }); hb.com.Student = function(cfg){ Ext.apply(this,cfg); } //通过继承的方式覆盖原来属性和方法,达到重写的目的 //这里已经定义好了Person的属性和方法 Ext.extend(hb.com.Student,hb.com.Person,{ job:"学生", print:function(){ alert(String.format("{0}是做{1}工作的一位{2}性:",this.name,this.job,this.sex)); } }); //cfg为Student的初始化数据 var cfg = {name:"huangbiao",sex:"boy"}; var student = new hb.com.Student(cfg); student.print(); </script> <body> <h1></h1> </body> </html>
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gbk"> <title></title> <link rel="stylesheet" type="text/css" href="../lib/ext-all.css" /> <script type="text/javascript" src="../lib/ext-base.js"></script> <script type="text/javascript" src="../lib/ext-all.js"></script> <script type="text/javascript" src="helloword.js"></script> </head> <script type="text/javascript"> Ext.namespace("hb.com"); //给命名空间取别名,命名空间别名首字母大写 Namespace = hb.com; //使用构造方法的核心 hb.com.Person = function(cfg){ Ext.apply(this,cfg); }; Ext.apply(hb.com.Person.prototype,{ print:function(){ alert(String.format("姓名:{0},性别:{1}",this.name,this.sex)); } }); hb.com.Person.print = function(_name,_sex){ var person = new hb.com.Person({name:_name,sex:_sex}); person.print(); } //这里使用了命名空间别名的方法 Namespace.Person.print("刘梅","女"); </script> <body> <h1></h1> </body> </html>?
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gbk"> <title></title> <link rel="stylesheet" type="text/css" href="../lib/ext-all.css" /> <script type="text/javascript" src="../lib/ext-base.js"></script> <script type="text/javascript" src="../lib/ext-all.js"></script> <script type="text/javascript" src="helloword.js"></script> </head> <script type="text/javascript"> Ext.namespace("hb.com"); //给命名空间取别名,命名空间别名首字母大写 Namespace = hb.com; //使用构造方法的核心 hb.com.Person = function(cfg){ Ext.apply(this,cfg); }; //类使用别名的方法是字母全部大写 PERSON = hb.com.Person ; Ext.apply(hb.com.Person.prototype,{ print:function(){ alert(String.format("姓名:{0},性别:{1}",this.name,this.sex)); } }); hb.com.Person.print = function(_name,_sex){ var person = new hb.com.Person({name:_name,sex:_sex}); person.print(); } //这里使用了类的别名 PERSON.print("刘梅","女"); </script> <body> <h1></h1> </body> </html>?
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