diff --git a/.gitignore b/.gitignore
index 0c63e0d..0159cd5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 .vscode/
 .venv/
 *.csv
-*.bat
\ No newline at end of file
+*.bat
+*.xlsx
\ No newline at end of file
diff --git a/邮件批量发送脚本.py b/邮件批量发送脚本.py
index 77feae5..a53535a 100644
--- a/邮件批量发送脚本.py
+++ b/邮件批量发送脚本.py
@@ -43,12 +43,12 @@ def main():
         workbook = pandas.read_excel(args.input)
         data = workbook.where(pandas.notnull(workbook), None).to_dict(orient='list')
         recipients = data.get(args.column_address, [])
-        codes = data.get(args.column_code, [])
     except Exception as e:
         print(f'[!!!!] 读取数据表失败：{e}')
         return 1
 
     limit = len(recipients)
+    codes = data.setdefault(args.column_code, [None] * limit)
     sents = data.setdefault(args.column_sent, [None] * limit)
 
     print(f'[信息] 已读取联系人信息共 {limit} 条')
@@ -171,7 +171,9 @@ def main():
     while active and index < limit:
         recipient = recipients[index]
         code = codes[index]
-        occurrence = occurrences.setdefault(code, [0])
+
+        if not code: occurrence = [0]
+        else: occurrence = occurrences.setdefault(code, [0])
 
         current = index
         index += 1