<!DOCTYPE html>
<html>

<head>
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <meta charset="utf-8" />
  <meta name="referrer" content="never">
  <title>HTML5 使用地理定位</title>
</head>

<body>
  <p id="demo">点击这个按钮,获得您的坐标:</p>
  <button onclick="getLocation()">试一下</button>
</body>

</html>
var x = document.getElementById("demo");
function getLocation() {
    if (navigator.geolocation) {
        navigator.geolocation.getCurrentPosition(showPosition);
    }
    else { x.innerHTML = "Geolocation is not supported by this browser."; }
}
function showPosition(position) {
    x.innerHTML = "Latitude: " + position.coords.latitude +
        "<br />Longitude: " + position.coords.longitude;
}