修改

app/api/controller/User.php

@@ -823,7 +823,7 @@ class User extends BaseController
                 return ["code"=>-1,"msg"=>"文件报错失败:".$qiniu->getError()];
             }
             @unlink($filePath);
-            return ["code"=>1,"url"=>str_replace("\\", "/", $img_url)];
+            return ["code"=>1,"url"=>str_replace("\\", "/", $img_url['url'])];
         }