在javascript中写类有多种方式: 1.function()中嵌套function; 2.prototype的方式 ,3.json的方式,如下:<script language="javascript">var Mouse={    m_name:"Big Mouse",    m_age:1,    getName:function(){        return Mouse.m_name;    },    getAge:function(){        return Mouse.m_age;    },    setName:function(str_name){        Mouse.m_name=str_name;    }};var m_name=Mouse.getName();var alert_="";alert_+=m_name+" , ";Mouse.setName("Small Mouse");m_name=Mouse.getName();alert_+=m_name;alert(alert_);</script>