Result Size: 625 x 534
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<!DOCTYPE html>
<html>
<body>
<p>点击按钮获取您的坐标。</p>
<button onclick="getLocation()">试一试</button>
<p id="demo"></p>
<script>
var x = document.getElementById("demo");
function getLocation() {
  if (navigator.geolocation) {
    navigator.geolocation.getCurrentPosition(showPosition, showError);
  } else { 
    x.innerHTML = "此浏览器不支持地理定位。";
  }
}
function showPosition(position) {
  x.innerHTML = "Latitude: " + position.coords.latitude + 
  "<br>Longitude: " + position.coords.longitude;
}
function showError(error) {
  switch(error.code) {
    case error.PERMISSION_DENIED:
      x.innerHTML = "用户拒绝了地理定位请求。"
      break;
    case error.POSITION_UNAVAILABLE:
      x.innerHTML = "位置信息不可用。"
      break;
    case error.TIMEOUT:
      x.innerHTML = "获取用户位置的请求超时。"
      break;
    case error.UNKNOWN_ERROR:
      x.innerHTML = "出现未知错误。"
      break;
  }
}
</script>
</body>