案例：html案例     状态：可编辑再运行    进入竖版
 运行结果　
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<!DOCTYPE html>
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<html>
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<body>
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<p id="demo">点击这个按钮，获得您的坐标：</p>
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<button onclick="getLocation()">试一下</button>
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<script>
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var x=document.getElementById("demo");
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function getLocation()
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  {
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  if (navigator.geolocation)
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    {
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    navigator.geolocation.getCurrentPosition(showPosition,showError);
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    }
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  else{x.innerHTML="Geolocation is not supported by this browser.";}
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  }
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function showPosition(position)
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  {
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  x.innerHTML="Latitude: " + position.coords.latitude +
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  "<br />Longitude: " + position.coords.longitude;
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  }
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function showError(error)
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  {
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  switch(error.code)
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    {
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    case error.PERMISSION_DENIED:
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      x.innerHTML="User denied the request for Geolocation."
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      break;
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    case error.POSITION_UNAVAILABLE:
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      x.innerHTML="Location information is unavailable."
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      break;
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    case error.TIMEOUT:
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      x.innerHTML="The request to get user location timed out."
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      break;
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    case error.UNKNOWN_ERROR:
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      x.innerHTML="An unknown error occurred."
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      break;
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    }
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  }
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</script>
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</body>
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</html>
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​