我无法获取当前使用api的时间

Question

我正在使用我的代码进行预测。我也想获得时间。 我如何获得时间？

我的代码：

function Get() { 
      var txtCity = document.getElementById("txtCity").value; 
      var weather = new XMLHttpRequest(); 
      weather.open("GET", "http://api.wunderground.com/api/df3f2ab5e1db8f97/conditions/q/"+txtCity+".json", false); 
      weather.send(null); 
      var r = JSON.parse(weather.response); 
      var dis = "Current location: " + r.current_observation.display_location.full + "<p>"; 
      dis += "current temp: " + r.current_observation.temperature_string + "<p>"; 
      dis += "current wind speed: " + r.current_observation.wind_string + "<p>"; 
      dis += "current time: " + r.current_observation.time_string;//returns undefined 
      document.getElementById("weather").innerHTML = dis; 
     } 

Answer 1

检查文档：http://www.wunderground.com/weather/api/d/docs?d=data/conditions

TIME_STRING不响应，但observation_time是。

替换此：

... 
dis += "current time: " + r.current_observation.time_string; 
... 

有了这个：

... 
dis += "current time: " + r.current_observation.observation_time; 
...