diff --git a/工具/批量添加字段数据.py b/工具/批量添加字段数据.py
index b2aac656..3d29e931 100644
--- a/工具/批量添加字段数据.py
+++ b/工具/批量添加字段数据.py
@@ -18,8 +18,8 @@ def FloatToInt(string):
 with open(datafile,"r",encoding="utf8") as f:
     data = f.read().strip()
 pos = data.index("\n")
-field = data[:pos].strip()
-appending_data = data[pos:]
+field = data[:pos].strip() #文件的第一个非空行的内容为字段名
+appending_data = data[pos:] #第一个非空行之后的内容为要添加的数据
 
 with open(r"../题库0.3/Problems.json","r",encoding = "utf8") as f:
     database = f.read()
@@ -29,53 +29,57 @@ with open(r"../题库0.3/LessonObj.json","r",encoding = "utf8") as f:
 obj_dict = json.loads(database)
 
 #该字段列表可能需要更新
-fields = ["content","objs","tags","genre","ans","solution","duration","usages","origin","edit","same","related","remark","space","unrelated"]
+fields = ["content","objs","tags","genre","ans","solution","duration","usages","origin","edit","same","related","remark","space","unrelated"] #题库中的现有字段, 可能会需要更新
 
 if field in fields:
-    field_type = type(pro_dict["000001"][field])
-    datalist = [record.strip() for record in appending_data.split("\n\n") if len(trim(record)) > 0]
+    field_type = type(pro_dict["000001"][field]) #得到字段类型
+    datalist = [record.strip() for record in appending_data.split("\n\n") if len(trim(record)) > 0] #以连续两个回车为分隔切分要添加的数据
     for record in datalist:
         id = re.findall(r"^[\d]{1,}",record)[0]
-        data = record[len(id):].strip()
+        data = record[len(id):].strip() #每个记录最前方的连续数字作为题号(补全六位), 除题号外的部分作为内容
         id = id.zfill(6)
         if not id in pro_dict:
             print("题号:",id,"不在数据库中.")
             break
         
         #字符串类型字段添加数据
-        elif field_type == str and data in pro_dict[id][field]:
+        elif field_type == str and data in pro_dict[id][field]: #若数据库内该题目字段中已有该数据则不作变更
             print("题号:",id,", 字段:",field,"中已有该数据:",data)
-        elif field_type == str and not data in pro_dict[id][field] and not field == "ans" and not field == "space":
+        elif field_type == str and not data in pro_dict[id][field] and not field == "ans" and not field == "space": #若数据库内该题目字段中未有该数据, 并且字段不是ans也不是space, 则在原内容之后添加新内容
             origin_data = pro_dict[id][field]
             new_data = trim(origin_data + "\n" + data)
             pro_dict[id][field] = new_data
             print("题号:",id,", 字段:",field,"中已添加数据:",data)
-        elif field_type == str and not data in pro_dict[id][field] and field == "ans" or field == "space":
+        elif field_type == str and not data in pro_dict[id][field] and field == "ans" or field == "space": #若数据库内该题目字段中未有该数据, 并且字段是ans或space, 则用新内容覆盖原内容
             pro_dict[id][field] = data
             print("题号:",id,", 字段:",field,"中已修改数据:",data)
         
         #数值类型字段添加数据
-        elif (field_type == int or field_type == float) and abs(float(data) - pro_dict[id][field])<0.01:
+        elif (field_type == int or field_type == float) and abs(float(data) - pro_dict[id][field])<0.01: #数值型数据若和原数据相差小于0.01, 则维持原状不变
             print("题号:",id,", 字段:",field,"中已有该数据:",FloatToInt(data))
-        elif (field_type == int or field_type == float) and abs(float(data) - pro_dict[id][field])>=0.01:
+        elif (field_type == int or field_type == float) and abs(float(data) - pro_dict[id][field])>=0.01: #数值型数据若和原数据相差大于等于0.01, 则替换原数据
             pro_dict[id][field] = FloatToInt(data)
             print("题号:",id,", 字段:",field,"中已修改数据:",FloatToInt(data))
         
         #列表类型字段添加数据
-        elif field_type == list:
-            cell_data_list = [d.strip() for d in data.split("\n")]
-            for cell_data in cell_data_list:
-                if cell_data in pro_dict[id][field]:
+        elif field_type == list: 
+            cell_data_list = [d.strip() for d in data.split("\n")] #字段为列表型时, 先按照回车切分数据中的各子项
+            for cell_data in cell_data_list: 
+                if cell_data in pro_dict[id][field]: #若数据库内该题目字段中已有该数据则不作变更
                     print("题号:",id,", 字段:",field,"中已有该数据:",cell_data)
-                elif not field == "objs":
+                elif not field == "objs" and not field == "usages": #若数据库内该题目字段中未有该数据, 且不是objs字段, 也不是usages字段, 则添加新数据
                     pro_dict[id][field].append(cell_data)
                     print("题号:",id,", 字段:",field,"中已添加数据:",cell_data)
-                else:
+                elif field == "objs": #若数据库内该题目字段中未有该数据, 且是objs字段, 则检测目标字典后, 再添加有效的新数据
                     if not cell_data in obj_dict and not cell_data.upper() == "KNONE":
                         print("题号:",id,", 字段:",field,"目标编号有误:",cell_data)
                     else:
                         pro_dict[id][field].append(cell_data.upper())
                         print("题号:",id,", 字段:",field,"中已添加数据:",cell_data.upper())
+                elif field == "usages": #若字段为usages, 则先判断班级是否做过该题目, 随后做相应处理
+                    
+
+
 else:
     print("字段名有误")