diff --git a/wwwroot/API.md b/wwwroot/API.md
index c15ff0c..1240cf2 100644
--- a/wwwroot/API.md
+++ b/wwwroot/API.md
@@ -98,6 +98,7 @@
 			"redirct": url		# 充值url
 		}
 	}
+重要：由于此URL来自支付宝，需要在新的页签或新window中打开才不会出现跨域错误
 ```
 	or
 ```