已经可以实现只保留每日最新数据了

InsideSummary.py

@@ -2,6 +2,7 @@ import re
 import json
 import requests
 import pymysql
+import datetime
 ##################################################################################################
                                                 #爬取数据
 # 国内疫情数据概况
@@ -58,8 +59,9 @@ for key in dict:
 data=json.loads(dict['data'])
 
 # 国内疫情数据实例化
-insideSummary=InsideSummary()
 # # #赋值
+def fetch_inside_summary(data):
+    insideSummary = InsideSummary()
     insideSummary.curConfirm = int(data['chinaTotal']['nowConfirm'])
     insideSummary.curConfirmRelative = int(data['chinaAdd']['nowConfirm'])
     insideSummary.asymptomatic = int(data['chinaTotal']['noInfect'])
@@ -77,40 +79,27 @@ insideSummary.cured = int(data['chinaTotal']['heal'])
     insideSummary.curedRelative = int(data['chinaAdd']['heal'])
     insideSummary.died = int(data['chinaTotal']['dead'])
     insideSummary.diedRelative = int(data['chinaAdd']['dead'])
-
+    return insideSummary
 ##########################################################################################################
                                             #存储数据于数据库
 
 #保存国内疫情概况数据
-# def save_home_realtime_datas(self,insideSummary):
-#     sql='insert into home_realtime_datas(curConfirm,curConfirmRelative,asymptomatic,asymptomaticRelative,unconfirmed,unconfirmedRelative,icu,icuRelative,confirmed,confirmedRelative,overseasInput,overseasInputRelative,cured,curedRelative,died,diedRelative,updatedTime) values(%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s%s,%s,%s,%s,%s)'
-#     res=self.get_inside_summary_tuple(insideSummary)
-#     try:
-#         self.cursor.execut(sql,res)
-#     except Exception as e:
-#         print(e)
 
-def connect():
-    # 请在这里补充代码，完成本关任务，注意缩进格式为4个空格
-    # ********* Begin ********* #
-    conn=pymysql.connect( # mysql服务器主机地址
-    host='localhost',
-    # 用户名
-    user='root',
-    # 数据库名
-    db='covid19_datas_guangxi',
-    # 用户密码
-    passwd='kfq991122',
-    # 编码格式
-    charset='utf8')
-    return conn
-    # *********  End  ********* #
 def insert(res):
+
     # 创建连接，并且返回连接对象
-    conn = connect()
+    conn =pymysql.connect(host='localhost',user='root',db='covid19_datas_guangxi',passwd='kfq991122',charset='utf8')
     # 创建游标对象
     cursor = conn.cursor()
-    # ********* Begin ********* #
+
+    date = data['lastUpdateTime']
+    sql = 'delete from home_realtime_datas where updatedTime like "%s"'%(date+'%')
+    print('The update was successful')
+    try:
+        cursor.execute(sql)
+        conn.commit()
+    except Exception as e:
+        print(e)
 
     sql='insert into home_realtime_datas(curConfirm,curConfirmRelative,asymptomatic,asymptomaticRelative,unconfirmed,unconfirmedRelative,icu,icuRelative,confirmed,confirmedRelative,overseasInput,overseasInputRelative,cured,curedRelative,died,diedRelative,updatedTime) values(%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s)'
     try:
@@ -119,13 +108,11 @@ def insert(res):
     except Exception as e:
         print(e)
     print('+++ save_province_datas is over.')
-
-    # *********  End  ********* #
-    # 关闭游标
     cursor.close()
-    # 关闭连接
     conn.close()
-insert(insideSummary.get_inside_summary_tuple())
+
+
+insert(fetch_inside_summary(data).get_inside_summary_tuple())
 
 
 conn = pymysql.connect('localhost','root','kfq991122','covid19_datas_guangxi')