diff --git a/common/config.py b/common/config.py
index a6c3cb4..855fb1e 100644
--- a/common/config.py
+++ b/common/config.py
@@ -70,7 +70,7 @@ default = {
             "global": 0,
             "ip": 0,
             "desc": "请求速率限制，global为全局，ip为单个ip，填入的值为至少间隔多久才能进行一次请求，单位：秒，不限制请填为0"
-        }
+        },
         "key": {
             "enable": False,
             "_enable-desc": "是否开启请求key，开启后只有请求头中包含key，且值一样时可以访问API",
diff --git a/main.py b/main.py
index 9ca018c..9914405 100644
--- a/main.py
+++ b/main.py
@@ -78,13 +78,13 @@ def check():
         return utils.format_dict_json({"code": 1, "msg": "您的IP已被封禁", "data": None}), 403
     # check global rate limit
     if (
-        (config.getRequestTime('global') - time.time())
+        (time.time() - config.getRequestTime('global'))
         <
         (config.read_config("security.rate_limit.global"))
         ):
         return utils.format_dict_json({"code": 5, "msg": "全局限速", "data": None}), 429
     if (
-        (config.getRequestTime(request.remote_addr) - time.time())
+        (time.time() - config.getRequestTime(request.remote_addr))
         <
         (config.read_config("security.rate_limit.ip"))
         ):