废话不多说，贴代码！
<!DOCTYPE html><html><head><title>Get my IP</title></head><body><a href="">whatsmyip</a> My Real IP is: <script type="text/javascript" src=""></script><script type="text/javascript">document.write("<br/>");</script><a href="?ie=utf-8">Sohu API</a> My IP Info: <script type="text/javascript" src="?ie=utf-8"></script><script type="text/javascript">var cip = returnCitySN.cip;var cid = returnCitySN.cid;var cname = returnCitySN.cname;document.write("IP is:" + cip + " " + "Address is:" + cname);</script><script type="text/javascript">document.write("<br/>");</script><a href="?callback=myip">PConline[太平洋] API</a><script type="text/javascript">/** * [myip description] 这儿用到了回调函数，myip({"ip":"27.17.140.49","pro":"湖北省","proCode":"420000","city":"武汉市","cityCode":"420100","region":"","regionCode":"0","addr":"湖北省武汉市 电信","regionNames":""});,我们可以看到,回调函数myip()里面有参数,仔细观察不难发现是json型数据,我们在回调函数里面用obj去获取它,这个参数随便定都可以，，然后哦这个参数就是我们获取的这个json型数据了. * @param {[type]} obj [description] 与返回的json型数据一一对应 * @return {[type]}[description] */function myip(obj){document.write("IP is:" + obj.ip + " " + "Address is:" + obj.addr);}</script><script type="text/javascript" src="?callback=myip"></script></body></html>相比大家应该一目了然，自己可以把代码copy下去自己是一下就知道了。
效果只能是既费时又没有胜利，再聪慧的人也没法成学。
