HTML5中使用geolocation API获取用户的位置
下面的例子展示了如何在在HTML5中通过geolocation API 获取用户的位置（经度，纬度）。
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<!DOCTYPE html><html><head> <script type="text/javascript"> function body_onLoad() { if (navigator.geolocation) { navigator.geolocation.getCurrentPosition(geo_onSuccess, geo_onError); } else { geo_onError(); } } function geo_onSuccess(pos) { document.getElementById("timestamp").innerHTML = new Date().toLocaleString(); document.getElementById("accuracySpan").innerHTML = pos.coords.accuracy; document.getElementById("altitudeSpan").innerHTML = pos.coords.aktitude; document.getElementById("altitudeAccuracySpan").innerHTML = pos.coords.altitudeAccuracy; document.getElementById("headingSpan").innerHTML = pos.coords.heading; document.getElementById("latitudeSpan").innerHTML = pos.coords.latitude; document.getElementById("longitudeSpan").innerHTML = pos.coords.longitude; document.getElementById("speedSpan").innerHTML = pos.coords.speed; } function geo_onError() { alert("Unable to get latitude/longitude, or browser does not support geolocation API."); } </script></head><body onload="body_onLoad();"> <h1>navigator.geolocation</h1> <table> <tr> <th>accuracy:</th> <td><span id="accuracySpan"></span></td> </tr> <tr> <th>altitude:</th> <td><span id="altitudeSpan"></span></td> </tr> <tr> <th>altitudeAccuracy:</th> <td><span id="altitudeAccuracySpan"></span></td> </tr> <tr> <th>heading:</th> <td><span id="headingSpan"></span></td> </tr> <tr> <th>latitude:</th> <td><span id="latitudeSpan"></span></td> </tr> <tr> <th>longitude:</th> <td><span id="longitudeSpan"></span></td> </tr> <tr> <th>speed:</th> <td><span id="speedSpan"></span></td> </tr> </table> <p id="timestamp"/> </body></html>?源码下载：
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determining-the-users-location.zip
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