• 三级联动 省市区练习


    1 <script src="../jquery-1.11.2.min.js"></script>
    2 <script src="sanjiliandong.js"></script>
    3 </head>
    4 <body>
    5 <div id="sanji"></div>
    6 </body>

    处理页面

    1 <?php
    2 $pcode = $_POST["pcode"];
    3 
    4 include("DBDA.class.php");
    5 $db = new DBDA();
    6 
    7 $sql = "select * from chinastates where parentareacode='{$pcode}'";
    8 
    9 echo $db->StrQuery($sql);

    JS页面

     1 // JavaScript Document
     2 $(document).ready(function(e) {
     3     //往id=sanji的div里面扔三个下拉
     4     var str = "<select id='sheng'></select><select id='shi'></select><select id='qu'></select>";
     5     
     6     $("#sanji").html(str);
     7     
     8     FillSheng();
     9     FillShi();
    10     FillQu();
    11     
    12     $("#sheng").change(function(){
    13             FillShi();
    14             FillQu();
    15         })
    16     $("#shi").change(function(){
    17             FillQu();
    18         })
    19     
    20 });
    21 
    22 //填充省的方法
    23 function FillSheng()
    24 {
    25     var pcode = "0001";
    26     
    27     $.ajax({
    28         async:false,
    29         url:"sanjichuli.php",
    30         data:{pcode:pcode},
    31         type:"POST",
    32         dataType:"TEXT",
    33         success: function(data){
    34                 var hang = data.split("|");
    35                 var str ="";
    36                 for(var i=0;i<hang.length;i++)
    37                 {
    38                     lie = hang[i].split("^");
    39                     str = str+"<option value='"+lie[0]+"'>"+lie[1]+"</option>";
    40                 }
    41                 $("#sheng").html(str);
    42             }
    43         
    44         });
    45 }
    46 
    47 //填充市的方法
    48 function FillShi()
    49 {
    50     var pcode = $("#sheng").val();
    51     
    52     $.ajax({
    53         async:false,
    54         url:"sanjichuli.php",
    55         data:{pcode:pcode},
    56         type:"POST",
    57         dataType:"TEXT",
    58         success: function(data){
    59                 var hang = data.split("|");
    60                 var str ="";
    61                 for(var i=0;i<hang.length;i++)
    62                 {
    63                     lie = hang[i].split("^");
    64                     str = str+"<option value='"+lie[0]+"'>"+lie[1]+"</option>";
    65                 }
    66                 $("#shi").html(str);
    67             }
    68         
    69         });
    70 }
    71 
    72 //填充区的方法
    73 function FillQu()
    74 {
    75     var pcode = $("#shi").val();
    76     
    77     $.ajax({
    78         async:false,
    79         url:"sanjichuli.php",
    80         data:{pcode:pcode},
    81         type:"POST",
    82         dataType:"TEXT",
    83         success: function(data){
    84                 var hang = data.split("|");
    85                 var str ="";
    86                 for(var i=0;i<hang.length;i++)
    87                 {
    88                     lie = hang[i].split("^");
    89                     str = str+"<option value='"+lie[0]+"'>"+lie[1]+"</option>";
    90                 }
    91                 $("#qu").html(str);
    92             }
    93         
    94         });
    95 }
    JS
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  • 原文地址:https://www.cnblogs.com/The-second/p/6065381.html
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