客户端调用ipv6-test接口得到客户端ipv4与ipv6地址

得到ipv6地址$.getJSON("http://v6.ipv6-test.com/json/widgetdata.php?callback=?", function(result){   console.log(result);});得到ipv4地址$.getJSON("http://v4.ipv6-test.com/json/widgetdata.php?callback=?", function(result){   console.log(result);});自动判断ipv4  ipv6地址$.getJSON("http://v4v6.ipv6-test.com/json/widgetdata.php?callback=?", function(result){   console.log(result);});