diff --git a/.gitignore b/.gitignore
index 8e7b0c8..22e87c5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,4 +4,5 @@ main.spec
 *.zip
 .venv/*
 build/
-zip/
\ No newline at end of file
+zip/
+log.txt
\ No newline at end of file
diff --git a/main.py b/main.py
index 284a40d..42b7a26 100644
--- a/main.py
+++ b/main.py
@@ -3,7 +3,10 @@ from openpyxl.utils import get_column_letter
 from openpyxl import load_workbook
 from datetime import datetime
 from dateutil.relativedelta import relativedelta
+import logging
 
+# 配置日志记录
+logging.basicConfig(filename='log.txt', level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
 
 P_LIMIT = 6 # 最大晋升次数
 
@@ -56,7 +59,7 @@ def role_salary(role:str, time):
                 tmp = rule["rule"][rule["rule"]["role"] == role].iloc[0]
                 return tmp["salary"]
             except:
-                print(f"[Error] 职位{role}在{time}时不存在工资规则")
+                logging.error(f"职位{role}在{time}时不存在工资规则")
     return 0
 
 def level_salary(level:str, time):
@@ -66,7 +69,7 @@ def level_salary(level:str, time):
                 tmp = rule["rule"][rule["rule"]["level"] == level].iloc[0]
                 return tmp["salary"]
             except:
-                print(f"[Error] 职级{level}在{time}时不存在工资规则")
+                logging.error(f"职级{level}在{time}时不存在工资规则")
     return 0
 
 def role_limit(role:str):
@@ -106,7 +109,7 @@ def fill_basic_info(ws, row):# 填充基本信息
 def fill_prompt_info(ws, promote):# 填充晋升信息
     for index, prow in promote.iterrows():
             if index > P_LIMIT-1:
-                print(f"[Error] 超过{P_LIMIT}条晋升信息，共{promote.shape[0]}条。")
+                logging.error(f"超过{P_LIMIT}条晋升信息，共{promote.shape[0]}条。")
                 max_promote = max(max_promote, promote.shape[0])
                 break
             ws.cell(row=P_START+index, column=1, value=prow["任职时间"].strftime("%Y.%m"))
@@ -131,7 +134,7 @@ BaseData["Latest_Prom"] = None
 
 for index, row in BaseData.iterrows():
     try:
-        print("[Debug] 台账：第",index+1,"共",BaseData.shape[0],"现在是",row["身份证号码"])
+        logging.info(f"台账：第{index+1}共{BaseData.shape[0]}现在是{row['身份证号码']}")
         BaseData.at[index, "Latest_Role"] = row["初始职务"]
         BaseData.at[index, "Latest_Prom"] = row["入职时间"].strftime("%Y.%m")
         wb = load_workbook("个人台账.xlsx")
@@ -199,13 +202,13 @@ for index, row in BaseData.iterrows():
         fill_history_info(ws, History_pd)# 填充历史记录
         wb.save(f"./output/{row['姓名']}_{row['身份证号码']}.xlsx")
     except Exception as e:
-        print("[Error]",e)
+        logging.error(e)
 
 wb = load_workbook("./汇总.xlsx")
 ws = wb.active
 for index, row in BaseData.iterrows(): # 汇总
     try:
-        print("[Debug] 汇总：第",index+1,"共",BaseData.shape[0],"现在是",row["身份证号码"])
+        logging.info(f"汇总：第{index+1}共{BaseData.shape[0]}现在是{row['身份证号码']}")
         for col in range(1,16):
             ws.cell(row=3+index, column=col)._style = ws.cell(row=3, column=col)._style
         ws.cell(row=6+index, column=1, value=index+1)
@@ -223,10 +226,10 @@ for index, row in BaseData.iterrows(): # 汇总
         ws.cell(row=6+index, column=13, value=row["职务2"])
         ws.cell(row=6+index, column=14, value=row["日期2"])
     except Exception as e:
-        print("[Error]",e)
+        logging.error(e)
 wb.save("./名册.xlsx") # 保存汇总
 
 if max_promote > 0:
-    print(f"[Error]最多有{max_promote}条晋升信息，需要调整模板。记得同时调整薪资历史的起始行和个人评价结果。")
+    logging.error(f"最多有{max_promote}条晋升信息，需要调整模板。记得同时调整薪资历史的起始行和个人评价结果。")
 if max_history > 0:
-    print(f"[Error]最多有{max_history}条薪资历史，需要调整模板。")
\ No newline at end of file
+    logging.error(f"最多有{max_history}条薪资历史，需要调整模板。")
\ No newline at end of file
diff --git a/规则需求.md b/规则需求.md
index d67cd19..f7c2acb 100644
--- a/规则需求.md
+++ b/规则需求.md
@@ -15,4 +15,4 @@
 	- [ ] 有一行数据样例，展示数据格式，实际不生成
 	- [ ] 带输入格式检测（修正、提示）
 - [ ] doc: 打包成exe教程
-- [ ] feat: 【赠送】输出log到文件
\ No newline at end of file
+- [x] feat: 【赠送】输出log到文件  [completion:: 2025-05-27]
\ No newline at end of file