如何确定用户的位置？
我想找到可以通过 GPS 确定用户当前位置的代码。例如，如果用户访问我的网页并且该用户是从法国浏览的，则该页面将以文本形式读回他们当前的位置。我认为 JavaScript 可能可以解决这个问题，但我不确定。
I want to find code that will determine the current location of a user via GPS. For example, if a user went to my webpage and that user was browsing from France, the page would read back their current location in text. I'm thinking JavaScript might do the trick, but I'm not sure.
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这与全球定位系统（GPS）没有太大关系，全球定位系统是一个发送当前时间的卫星网络 - 至少不是直接发送。
您可以使用 HTML5 地理定位 API 来检测用户浏览器的位置说它位于何处，但即使他们告诉您真相，您也不知道他们从哪里获得该信息。
或者，您可以通过 GeoIP 数据库从 IP 地址猜测他们的位置，但这不精确且容易出错。
This doesn't have much to do with the Global Positioning System (GPS), which is a network of satellites sending out the current time - at least, not directly.
You can use the HTML5 Geolocation API to detect where the user's browser says it's located, but even if they are telling you the truth, you don't know where they got that information.
Or, you could guess their location from their IP address via a GeoIP database, but that's imprecise and error-prone.