jQuery Mobile中的货币转换器

Question

我正在JQuery Mobile的帮助下制作一个android应用程序。在这些应用程序我想转换一下用户想它应该看看全球西隧是当时的汇率的货币和天

在HTML5： -

<label for="amount">Convert this amount:</label> 
    <input type="text" name="amount" id="amount" value="" /> 
<div class="data"> 
    <label for="fromCurrency">From this currency:</label> 
    <select name="fromCurrency" id="fromCurrency"> 
     <option selected="" value="EUR">Euro - EUR</option> 
     <option value="USD">United States Dollars - USD</option> 
     <option value="GBP">United Kingdom Pounds - GBP</option> 
     <option value="CAD">Canada Dollars - CAD</option> 
     <option value="AUD">Australia Dollars - AUD</option> 
     <option value="JPY">India Rupees - JPY</option> 
    </select> 
</div> 
<div class="data"> 
    <label for="toCurrency">To this currency:</label> 
    <select name="toCurrency" id="toCurrency"> 
     <option value="USD">United States Dollars - USD</option> 
     <option value="GBP">United Kingdom Pounds - GBP</option> 
     <option value="CAD">Canada Dollars - CAD</option> 
     <option value="AUD">Australia Dollars - AUD</option> 
     <option value="JPY">Japan Yen - JPY</option> 
     <option value="INR">India Rupees - INR</option> 
    </select> 
</div> 

    <input type="button" name="convert" id="convert" value="Convert" /> 

    <div id="results"></div> 

jQuery中： -

$(document).ready(function() { 
    $('#convert').click(function(){ 
     var amount = $('#amount').val(); 
     var from = $('#fromCurrency').val(); 
     var to = $('#toCurrency').val(); 
     var dataString = "amount=" + amount + "&from=" + from + "&to=" + to; 
      $.ajax({ 
       type: "POST", 
       url: "http://www.google.com/ig/calculator?hl=en&q="+dataString, 
       data: dataString, 
       success: function(data){ 
       $('#results').show(); 
       $('#results').html(data); 
       } 
      }); 
     }); 
    }); 

什么错误，我做到了这不来了

请帮我

head标签里面，我有使用下面的脚本

<meta name="viewport" content="width=device-width,initial-scale=1"> 
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.3.1/jquery.mobile-1.3.1.min.css" /> 
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script> 
<script src="http://code.jquery.com/mobile/1.3.1/jquery.mobile-1.3.1.min.js"></script> 
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script> 

Answer 1

这里去工作代码：

$('#convert').click(function(){ 
     var amount = $('#amount').val(); 
     var from = $('#fromCurrency').val(); 

     var to = $('#toCurrency').val(); 
     var dataString = from + "&to=" + to + "&q=" + amount; 

     $.ajax({ 
      type: "POST", 
      crossDomain: true, 
      dataType: 'jsonp', 
      contentType: "application/json; charset=utf-8", 
      url: "http://rate-exchange.appspot.com/currency?from=" + dataString, 
      success: function(data){ 
       alert(JSON.stringify(data)); 
       $('#results').show(); 
       $('#results').html(data.v); 
      },error: function(xhr, status, error) { 
       alert(xhr.responseText); 
      } 
     }); 
    });