不可使用非法字符

application/admin/controller/User.php

@@ -110,7 +110,7 @@ class User extends BaseController
 //                tojson(202, '不可使用非法字符');
 //            }
             //去除空格
-            $_POST['username']=str_replace(array(" ","!","@","#","$","%","^","&","*","(",")","{","}",";","'",",",".","/",":","<",">","?"),'', $_POST['username']);
+            $_POST['username']=str_replace(array(" ","!","@","#","$","%","^","&","*","(",")","{","}",";","'",",",".","/",":","<",">","?","~","`",".","-","+","-","_","="),'', $_POST['username']);
             $check = $User_model->where(['username' => $_POST['username']])->value('id');
             if ($check) {
                 tojson(10000, '账号已存在');