diff --git a/main.py b/main.py
index 1ae213b..dad86e6 100644
--- a/main.py
+++ b/main.py
@@ -1,21 +1,25 @@
 import pandas as pd
-import time, datetime
+import datetime
 from math import floor
+from copy import copy
 import os
 
 # Read & Process ID table
 items = os.listdir(os.path.abspath('.'))
 print("在当前目录共有以下文件：")
 file_index = 0
+items_copy = copy(items)
 for item in items:
-    if item != "main.py" and item != "main.exe":
+    if item != "main.py" and item != "main.exe" and item[0] != '.':
         file_index += 1
         print(f"{file_index} - {item}")
+    else:
+        items_copy.remove(item)
 id_index = int(input("请选择身份证列表（输入数字后回车）"))
 duty_index = int(input("请选择值班排班表（输入数字后回车）"))
 
-identities_path = r'./' + items[id_index - 1]
-duty_path = r'./' + items[duty_index - 1]
+identities_path = r'./' + items_copy[id_index - 1]
+duty_path = r'./' + items_copy[duty_index - 1]
 
 print("正在读取身份信息...")
 identities = pd.read_excel(identities_path, sheet_name= "Sheet1")
@@ -31,7 +35,7 @@ print("读取完毕！")
 
 # Read & Calculate Honor Hours
 print("正在读取值班信息...")
-duty = pd.read_excel(duty_path, sheet_name= "Sheet1")
+duty = pd.read_excel(duty_path, sheet_name = "Sheet1")
 
 hours_dict = {}
 index = 0
@@ -39,9 +43,9 @@ index = 0
 time_fmt = "%H:%M"
 
 for members in duty["人员"]:
-    time = duty["时间"][index].split('-')
-    time_end = datetime.datetime.strptime(time[1], time_fmt)
-    time_start = datetime.datetime.strptime(time[0], time_fmt)
+    period = duty["时间"][index].split('-')
+    time_end = datetime.datetime.strptime(period[1], time_fmt)
+    time_start = datetime.datetime.strptime(period[0], time_fmt)
     hours = (time_end - time_start).seconds / 3600
 
     members = members.split('、')
@@ -68,7 +72,7 @@ hour_path = r'./hour.xlsx'
 
 id_list = []
 for member in hours_dict.keys():
-    id_list.append(id_dict[member])
+    id_list.append(str(id_dict[member]))
 
 df = pd.DataFrame({"姓名": hours_dict.keys(), "身份证号码": id_list, "荣誉时数值": hours_dict.values()})
 df = df.set_index("姓名")
diff --git a/值班排班表示例.xlsx b/值班排班表示例.xlsx
index 4c727e6..94555e1 100644
Binary files a/值班排班表示例.xlsx and b/值班排班表示例.xlsx differ
diff --git a/身份信息表示例.xlsx b/身份信息表示例.xlsx
index 94e2588..5a49ec4 100644
Binary files a/身份信息表示例.xlsx and b/身份信息表示例.xlsx differ