Jquery AJAX选择省份,市区

来源：互联网发布：淘宝卖家企业店铺编辑：程序博客网时间：2024/04/28 12:37

前端部分:

<!doctype html><html lang="en"><head><meta charset="UTF-8">    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no, minimal-ui"><title>AJAX获取省份</title><script src="jquery.js"></script><style>       *{       padding:0;       margin:0;       }       #select,#select2{       width: 100px;       height: 20px;       }       .option{       width: 100px;       }</style></head><body><select name="" id="select"></select>   <select name="" id="select2"></select><script>       $(function(){       var value, htm="",htm2="";    //初始化       console.log(1);       $.ajax({       url:"info.php",       data:"",       success:function(data){       data=JSON.parse(data);              //把string转换成json格式       $.each(data,function(i,j){          //遍历json数据       htm +='<option value='+i+'>'+i+'</option>';       })           $("#select").html(htm);           value=$("#select").val();           //取得省份的值           for(var i=0;i<data[value].length;i++){           htm2 +='<option value='+data[value][i]+'>'+data[value][i]+'</option>';           }            $("#select2").html(htm2);       }       })                   //选择省份和市区    $("#select").change(function(){    var num=$(this).val();    htm2="";        $.ajax({        url:"info.php",        data:"",        success:function(data){        data=JSON.parse(data);           for(var i=0;i<data[num].length;i++){           htm2 +='<option value='+data[num][i]+'>'+data[num][i]+'</option>';           }           $("#select2").html(htm2);        }        })    });});</script></body></html>

PHP后台部分

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