diff --git a/library/think/Input.php b/library/think/Input.php
index 848be817..a6445b2d 100644
--- a/library/think/Input.php
+++ b/library/think/Input.php
@@ -465,7 +465,11 @@ class Input
             // 字符串
             case 's':
             default:
-                $data = (string) $data;
+                if (is_scalar($data)) {
+                    $data = (string) $data;
+                } else {
+                    throw new Exception('变量类型不允许：' . gettype($data));
+                }
         }
     }
 }
diff --git a/library/think/Response.php b/library/think/Response.php
index 634a2d99..8c35f87b 100644
--- a/library/think/Response.php
+++ b/library/think/Response.php
@@ -111,7 +111,12 @@ class Response
                 header($name . ':' . $val);
             }
         }
-        echo $data;
+        if (is_scalar($data)) {
+            echo $data;
+        } else {
+            throw new Exception('不支持的数据类型输出：' . gettype($data));
+        }
+
         if (function_exists('fastcgi_finish_request')) {
             // 提高页面响应
             fastcgi_finish_request();