topages/login/login.js

/**
 * Created by mac on 18/7/27.
 */
$('#login-btn').on('click',function () {
   var username = $.trim($('#login-username').val());
   var userpwd = $.trim($('#login-password').val());
   if(username==''||username==null||username==undefined){
       $('#login-errorifo').text('请输入用户名');
       return;
   }else{
       if(userpwd==''||userpwd==null||userpwd==undefined){
           $('#login-errorifo').text('请输入密码');
       }else{
           //ajax 如果输入不正确 继续提示 。如果正确把 $('#login-errorifo').text('')清空;
       }
   }
});