修改接参方式

application/api/controller/Usercenter.php

@@ -42,7 +42,7 @@ class Usercenter extends Api
 
     //搜索用户列表
     public function search_user_list(){
-        $username = input_post('username','');
+        $username = input('username','');
         if(!$username){
             $this->error();
         }