add clear

wchat/common/Result.php

@@ -152,7 +152,7 @@ class Result
 	public function append($key, $data)
 	{
 		if (!is_array($this->data)) {
-			$this->data = [];
+			$this->data = ['origin' => $this->data];
 		}
 		$this->data[$key] = $data;
 		return $this;