月份：2018年4月

具体请看下面代码：

<script>
    var x=document.getElementById("demo");
    function getLocation() {
        if (navigator.geolocation) {
            navigator.geolocation.getCurrentPosition(showPosition,showError);
        } else {
            x.innerHTML="当前浏览器不支持Geolocation";
        }
    }
    function showPosition(position) {
        x.innerHTML="Latitude: " + position.coords.latitude + "<br />Longitude: " + position.coords.longitude;
    }
    function showError(error) {
        switch(error.code) {
            case error.PERMISSION_DENIED:
                alert("User denied the request for Geolocation.")
                break;
            case error.POSITION_UNAVAILABLE:
                alert("Location information is unavailable.")
                break;
            case error.TIMEOUT:
                alert("The request to get user location timed out.")
                break;
            case error.UNKNOWN_ERROR:
                alert("An unknown error occurred.")
                break;
        }
    }
    </script>