


Personally, I prefer to use province and city linkage. Personal province and city linkage_PHP tutorial
I personally like to use province and city linkage, personal province and city linkage
This is to use the js used by the QQ website to achieve the three-level linkage of provinces and cities. Quoting is very convenient
Front desk:
<!DOCTYPE html> <html> <head> <title>QQ JS省市区三级联动</title> <!-- 直接使用QQ的省市区数据 --> <!-- <script type=<span>"</span><span>text/javascript</span><span>"</span> src=<span>"</span><span>http://ip.qq.com/js/geo.js</span><span>"</span>></script> --> <script type=<span>"</span><span>text/javascript</span><span>"</span> src=<span>"</span><span>geo.js</span><span>"</span>></script> </head> <body onload=<span>"</span><span>setup();preselect('陕西省');promptinfo();</span><span>"</span>> <form> <<span>select</span> <span>class</span>=<span>"</span><span>select</span><span>"</span> name=<span>"</span><span>province</span><span>"</span> id=<span>"</span><span>s1</span><span>"</span>> <option></option> </<span>select</span>> <<span>select</span> <span>class</span>=<span>"</span><span>select</span><span>"</span> name=<span>"</span><span>city</span><span>"</span> id=<span>"</span><span>s2</span><span>"</span>> <option></option> </<span>select</span>> <<span>select</span> <span>class</span>=<span>"</span><span>select</span><span>"</span> name=<span>"</span><span>town</span><span>"</span> id=<span>"</span><span>s3</span><span>"</span>> <option></option> </<span>select</span>> <input id=<span>"</span><span>address</span><span>"</span> name=<span>"</span><span>address</span><span>"</span> type=<span>"</span><span>hidden</span><span>"</span> value=<span>""</span> /> <input onclick=<span>"</span><span>alert(document.getElementById('address').value); return false;</span><span>"</span> type=<span>"</span><span>submit</span><span>"</span> value=<span>"</span><span>提交</span><span>"</span> /> </form> <script> <span>//</span><span>这个函数是必须的,因为在geo.js里每次更改地址时会调用此函数</span> <span>function promptinfo() { </span><span>var</span> address = document.getElementById(<span>'</span><span>address</span><span>'</span><span>); </span><span>var</span> s1 = document.getElementById(<span>'</span><span>s1</span><span>'</span><span>); </span><span>var</span> s2 = document.getElementById(<span>'</span><span>s2</span><span>'</span><span>); </span><span>var</span> s3 = document.getElementById(<span>'</span><span>s3</span><span>'</span><span>); address.value </span>= s1.value + s2.value +<span> s3.value; } </span></script> </body> </html>
The backend uses js.
Instance download: http://files.cnblogs.com/zjfree/qqJsAddress.rar
Original link: http://www.cnblogs.com/zjfree/

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