Knockout: radio switch

<html>
<head>
   <script src="../lib/require/require.js" data-main="ko1_radio1_main"></script>
</head>
<body  >
  <input id="Radio1" name="rdoCunKuanType" data-bind="checked:CunKuanType" value="H" checked type="radio" />活期存款 
  <input id="Radio2" name="rdoCunKuanType" data-bind="checked:CunKuanType" value="D" type="radio">定期存款
  <br />定期几年：<input type="text" />年 <font data-bind="visible:ShowStar" color="red">*</font>
</body>
</html>

require.config({
    paths: {
        "knockout": "../lib/knockout/knockout-2.3.0",
        "jquery": "../lib/jquery/jquery-1.9.1.min"
    }
});
 
require(['jquery', 'knockout'], function ($, ko) {
 
    //数据绑定
    $(document).ready(function () {
 
        var viewModel = {
            CunKuanType: ko.observable("H")
        };
 
        viewModel.ShowStar = ko.dependentObservable(function ()
        {
            if (viewModel.CunKuanType() == "H")
            {
                return false;
            }
            else
            {
                return true;
            }
        }, viewModel);
       
        ko.applyBindings(viewModel);
    });
});

转自：http://www.cnblogs.com/liuzhendong/p/3520030.html

(真巧)