廢話不多說(shuō)了，直接給大家貼代碼了，具體代碼如下所示：

<script type="text/JavaScript">  //獲取url中的參數(shù)  $(function(){    var userName = window.location.href;    var aa = userName.indexOf("=");      console.log(userName);    if (aa == -1)      return "";    userName=userName.substring(aa+1);    //給hidden賦值并顯示    $("#userName").val(userName).attr("type","text");    //ajax請(qǐng)求修改密碼    var rePassword = $("#repeatPassword").val();    //6到15位字母或數(shù)字    var reg=/^[0-9a-zA-Z]{6,15}$/;    //新密碼校驗(yàn)    $("#newPassword").blur(function(){      $("#msg").css("display","none");      var newPassword = $("#newPassword").val();      if(newPassword==""||newPassword==null){       $("#msg").html("請(qǐng)輸入新密碼！").css("display","block");      }elseif(!reg.test(newPassword)){       $("#msg").html("密碼格式不正確,請(qǐng)重新輸入！").css("display","block");      }    });    //重復(fù)密碼校驗(yàn)    $("#repeatPassword").blur(function(){      var newPass = $("#newPassword").val();      var repPass = $("#repeatPassword").val();      if(newPass != repPass){       $("#msg").html("兩次輸入密碼不一致,請(qǐng)重輸！").css("display","block");      }    });    //表單提交前校驗(yàn)    $("#updateBtn").click(function(){      var flag = true;      var newPass = $("#newPassword").val();      var repPass = $("#repeatPassword").val();      var reg1=/^[0-9a-zA-Z]{6,15}$/;      if(!reg1.test(newPass)||newPass!=repPass||newPass ==""||newPass==null){       flag = false;      }      if(flag){       $.ajax({         url:"/HuaMuWebsite/userManage/editPassword?userName="+userName,         type:"POST",         async:false,         data:$("#fm").serialize(), //表單數(shù)據(jù)序列化, 可以對(duì)form表單進(jìn)行序列化，從而將form表單中的所有參數(shù)傳遞到服務(wù)端。         success:function(data){         //json字符串轉(zhuǎn)為json對(duì)象         var jsonObj=eval("("+data+")");         if(jsonObj.success != null){           alert(jsonObj.success);           window.location.href="/HuaMuWebsite/admin/login.html" rel="external nofollow" ;         }else{           alert(jsonObj.failure);         }       },       error:function(e){         alert("請(qǐng)求出錯(cuò)！");       }       });      }   });  });</script>