diff --git a/.github/workflows/lint-and-format.yml b/.github/workflows/lint-and-format.yml
new file mode 100644
index 0000000..ba5e198
--- /dev/null
+++ b/.github/workflows/lint-and-format.yml
@@ -0,0 +1,31 @@
+name: Lint Code  
+  
+on:  
+  push:  
+    branches:  
+      - main  
+  
+jobs:  
+  lint:  
+    name: Lint  
+    runs-on: ubuntu-latest  
+    steps:  
+      - name: Check out repository  
+        uses: actions/checkout@v2  
+  
+      - name: Set up Python  
+        uses: actions/setup-python@v2  
+        with:  
+          python-version: 3.x
+  
+      - name: Install dependencies  
+        run: |  
+          python -m pip install --upgrade pip  
+          pip install black flake8  
+   
+      - name: Format with black  
+        run: black .
+  
+      - name: Lint with flake8  
+        run: flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics  
+        continue-on-error: false
\ No newline at end of file
diff --git a/nonebot_plugin_calc24/file_handle.py b/nonebot_plugin_calc24/file_handle.py
index 37d84b3..b127053 100644
--- a/nonebot_plugin_calc24/file_handle.py
+++ b/nonebot_plugin_calc24/file_handle.py
@@ -1,9 +1,11 @@
 from pathlib import Path
 import json
 
+
 def file_path(file):
     return Path(__file__).resolve().parent / file
 
+
 class file_handle:
     def file_reading(self, file: str, key: str):
         try:
diff --git a/nonebot_plugin_calc24/xj_calc24.py b/nonebot_plugin_calc24/xj_calc24.py
index 08eb1b9..894c810 100644
--- a/nonebot_plugin_calc24/xj_calc24.py
+++ b/nonebot_plugin_calc24/xj_calc24.py
@@ -5,7 +5,10 @@
 file_handle = file_handle()
 
 legal_data_array = file_handle.file_reading("calc24-data.json", "data")
-new_continuous_legal_data = {tuple(arr): None for arr in legal_data_array}
+if legal_data_array is None:
+    raise ValueError("文件读取错误")
+else:
+    new_continuous_legal_data = {tuple(arr): None for arr in legal_data_array}
 
 
 def check_if_in_dict(array):
@@ -17,7 +20,6 @@ def check_if_in_dict(array):
 def random_number_generator():
     intdata = [1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 13, 13]
     a_data = random.sample(intdata, 4)
-    # a_data = [1,1,1,1]
     if check_if_in_dict(a_data):
         return random.sample(intdata, 4)
     return a_data
diff --git a/pyproject.toml b/pyproject.toml
index a1cf3f7..d4500b0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "nonebot-plugin-calc24"
-version = "1.3.12"
+version = "1.3.13"
 
 description = "A 24-point game plugin implemented using NoneBot."
 authors = ["AwAjie <139576615+ajdgg@users.noreply.github.com>"]