<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Location</title>
</head>
<body>
My location is :
<button id="btn1" onclick="getLocation()">Click</button>
<p id="output"></p>
<script type="text/javascript">
var output=document.getElementById("output");
function getLocation()
{
if (navigator.geolocation)
{
navigator.geolocation.getCurrentPosition(showPosition);
}
else{output.innerHTML="Geolocation is not supported by this browser.";}
}
function showPosition(position)
{
output.innerHTML="Latitude: " + position.coords.latitude +
"<br />Longitude: " + position.coords.longitude;
}
</script>
</body>
</html>
根據兩點的經緯度，求距離：
參考：https://www.cnblogs.com/ycsfwhh/archive/2010/12/20/1911232.html