jQuery完成省市二級聯動
阿新 • • 發佈：2018-12-11
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>使用jQuery完成省市二級聯動</title> <style type="text/css"> .top{ border: 1px solid red; width: 32.9%; height: 50px; float: left; } #clear{ clear: both; } #menu{ border: 1px solid blue; width: 99%; height: 40px; background-color: black; } #menu ul li{ display: inline; color: white; font-size: 19px; } #bottom{ text-align: center; } #contanier{ border: 1px solid red; width: 99%; height: 600px; background: url(../img/regist_bg.jpg); position: relative; } #content{ border: 5px solid gray; width: 50%; height: 60%; position: absolute; top: 100px; left: 300px; background-color: white; padding-top: 50px; } </style> <script type="text/javascript" src="../js/jquery-1.8.3.js" ></script> <script> $(function(){ //2.建立二維陣列用於儲存省份和城市 var cities = new Array(3); cities[0] = new Array("武漢市","黃岡市","襄陽市","荊州市"); cities[1] = new Array("長沙市","郴州市","株洲市","岳陽市"); cities[2] = new Array("石家莊市","邯鄲市","廊坊市","保定市"); cities[3] = new Array("鄭州市","洛陽市","開封市","安陽市"); $("#province").change(function(){ //10.清除第二個下拉列表的內容 $("#city").empty(); //1.獲取使用者選擇的省份 var val = this.value; //alert(val); //3.遍歷二維陣列中的省份 $.each(cities,function(i,n){ //alert(i+":"+n); //4.判斷使用者選擇的省份和遍歷的省份 if(val==i){ //5.遍歷該省份下的所有城市 $.each(cities[i], function(j,m) { //alert(m); //6.建立城市文字節點 var textNode = document.createTextNode(m); //7.建立option元素節點 var opEle = document.createElement("option"); //8.將城市文字節點新增到option元素節點中去 $(opEle).append(textNode); //9.將option元素節點追加到第二個下拉列表中去 $(opEle).appendTo($("#city")); }); } }); }); }); </script> </head> <body> <div> <!--1.logo部分的div--> <div> <!--切分為3個小的div--> <div class="top"> <img src="../img/logo2.png" height="47px"/> </div> <div class="top"> <img src="../img/header.png" height="47px"/> </div> <div class="top" style="padding-top: 15px;height: 35px;"> <a href="#">登入</a> <a href="#">註冊</a> <a href="#">購物車</a> </div> </div> <!--清除浮動--> <div id="clear"> </div> <!--2.導航欄部分的div--> <div id="menu"> <ul> <li >首頁</li> <li >電腦辦公</li> <li >手機數碼</li> <li >孕嬰保健</li> <li >鞋靴箱包</li> </ul> </div> <!--3.中間登錄檔單部分div--> <div id="contanier"> <div id="content"> <table border="1" align="center" cellpadding="0" cellspacing="0" width="70%" height="70%" bgcolor="white"> <form method="get" action="#" onsubmit="return checkForm()"> <tr> <td colspan="2" align="center"> <font size="5">會員註冊</font> </td> </tr> <tr> <td> 使用者名稱 </td> <td> <input type="text" name="username" id="username" onfocus="showTips('username','必須以字母開頭')" onblur="check('username','使用者名稱不能為空')" /><span id="usernamespan"></span> </td> </tr> <tr> <td>密碼</td> <td> <input type="password" name="password" id="password" onfocus="showTips('password','密碼長度不能低於6位！')" onblur="check('password','密碼不能為空！')" /><span id="passwordspan"></span> </td> </tr> <tr> <td>確認密碼</td> <td> <input type="password" name="repassword" /> </td> </tr> <tr> <td>email</td> <td> <input type="text" name="email" id="email" /> </td> </tr> <tr> <td>姓名</td> <td> <input type="text" name="name" /> </td> </tr> <!--1.編寫HTML檔案部分的內容--> <tr> <td>籍貫</td> <td> <!--2.確定事件，通過函式傳參的方式拿到改變後的城市--> <select id="province"> <option>--請選擇--</option> <option value="0">湖北</option> <option value="1">湖南</option> <option value="2">河北</option> <option value="3">河南</option> </select> <select id="city"> </select> </td> </tr> <tr> <td>性別</td> <td> <input type="radio" name="sex" value="男"/>男 <input type="radio" name="sex" value="女"/>女 </td> </tr> <tr> <td>出生日期</td> <td> <input type="text" name="birthday" /> </td> </tr> <tr> <td>驗證碼</td> <td> <input type="text" name="yanzhengma" /> <img src="../img/yanzhengma.png" /> </td> </tr> <tr> <td colspan="2"> <input type="submit" value="註冊" /> </td> </tr> </form> </table> </div> </div> </div> </body> </html>