深入剖析JavaScript中的枚举功能

  由于 Microsoft AJAX Library 对于 JavaScript 进行了大幅扩展,

  枚举这个常用的功能当然也被加进去了,

  本次就是来探讨 JavaScript 的枚举功能。

  由于范例很简单,

  所以直接看 HTML 标签就 OK 了

  

复制代码 代码如下:

  <html xmlns="http://www.w3.org/1999/xhtml">

  <head runat="server">

  <title></title>

  </head>

  <body>

  <form id="form1" runat="server">

  <asp:ScriptManager ID="ScriptManager1" runat="server">

  </asp:ScriptManager>

  <script language="javascript" type="text/javascript">

  Type.registerNamespace("BaoBeiMe");

  //注册一个枚举

  BaoBeiMe.EnumDepartment = function() {

  }

  BaoBeiMe.EnumDepartment.prototype = {

  One: "信息部",

  Two: "业务部",

  Three: "财务部",

  Four: "研发部"

  }

  BaoBeiMe.EnumDepartment.registerEnum("BaoBeiMe.EnumDepartment");

  function Button1_onclick() {

  var enumDepartment = new BaoBeiMe.EnumDepartment();

  var lblMsg = $get('<%=lblMsg.ClientID %>');

  lblMsg.innerText = "One 是 " + enumDepartment.One + "  ,       " +

  "Two 是 " + enumDepartment.Two + "  ,       " +

  "Three 是 " + enumDepartment.Three + "  ,       " +

  "Four 是 " + enumDepartment.Four + "       ";

  }

  </script>

  <div>

  <input id="Button1" type="button" value="获取所以枚举值"

  onclick="return Button1_onclick()" /><br />

  <br />

  <asp:Label ID="lblMsg" runat="server" Text=""></asp:Label>

  </div>

  </form>

  </body>

  </html>

  结果

深入剖析JavaScript中的枚举功能