更新了视图行为,switch语句

README.md

@@ -11,7 +11,7 @@ selenium + redis + 分布式 + xpath + etree + 可视化
     -   [ ] 同时/后期追加 存入csv 价格趋势，涨跌幅。比对，给出价格波动趋势
 -   [x] 加入Redis分布式设计
 -   [ ] 数据可视化
-    -   [ ] 预计两种模式（终端交互）：随机或取评价数为索引目标，给出取出的item的具体信息，例如价格预测。
+    -   [ ] 预计两种模式（终端交互）：随机或取评价数为索引目标，给出取出的item的具体信息，例如价格趋势。
         -   [ ] 选择目录，友好的选择交互体验
         -   [ ] 选择抽取item模式（热评就列出前五条，随机就随机取一条）
 -   [ ] python打包exe，需要图形化界面？
@@ -183,6 +183,40 @@ ChromeDriver
 
 ### Matplotlib
 
+[python数据可视化，MatLab开源替代方案](https://www.runoob.com/numpy/numpy-matplotlib.html)
+
+用pip管理器安装`pip install matplotlib`
+
+```python
+# 使用方法
+import numpy as np
+from matplotlib import pyplot as plt
+
+x = np.arange(1,11) 
+y =  2  * x +  5 
+plt.title("Matplotlib demo") 
+plt.xlabel("x axis caption") 
+plt.ylabel("y axis caption") 
+plt.plot(x,y) 
+plt.show()
+```
+
+切换字体
+
+```python
+from matplotlib import pyplot as plt
+import matplotlib
+
+def getFont():  # 列出可用的字体
+    font = sorted([f.name for f in matplotlib.font_manager.fontManager.ttflist])
+    for i in font:
+        print(i)
+# getFont()
+plt.rcParams['font.family'] = ['Microsoft YaHei']
+```
+
+
+
 ### Requests
 
 经典老碟
@@ -192,6 +226,15 @@ import requests
 
 ```
 
+### 正则表达式
+
+```python
+# 完全匹配浮点数
+reg = [-+]?[0-9]*\.?[0-9]*
+```
+
+
+
 ### 线程
 
 多线程，手动版
@@ -272,8 +315,6 @@ with ThreadPoolExecutor(max_workers = 10) as thread:
         print(task.result())	# 返回上面 printTime 函数的返回值
 ```
 
-
-
 ### Redis
 
 ```python
@@ -342,4 +383,6 @@ redisconn = redis.Redis(host = '127.0.0.1', port = '6379', password = 'x', db =
 
 18，[python线程池](https://www.cnblogs.com/liyuanhong/p/15767817.html)
 
-19，
+19，[python matplotlib坐标轴设置的方法](https://www.csdn.net/tags/NtzaUgxsOTQ2NjgtYmxvZwO0O0OO0O0O.html)
+
+20，

milkSpider.py

@@ -2,13 +2,58 @@
 
 import middlewares
 import time
+import settings
+
+
+def showBanner(menu = 'main'):
+    print(settings.BANNER.get(menu), end='')
+
+def switch(menu = '1'):
+    case = {
+        '1' : main,
+        '2' : introduce,
+        '3' : view,
+        '4' : middlewares.save2Redis,
+        '5' : middlewares.clearRedis,
+        '6' : milkSpider,
+        '7' : aexit
+    }
+    if menu in case.keys():
+        case.get(menu)()
+    else:
+        print("no such choice", end = '')
+    return
+
+def main():
+    while True:
+        showBanner()
+        menu = str(input("选择一项:"))
+        switch(menu)
+
+def introduce():
+    print(settings.BANNER.get('introduce'), end = '')
+    while True:
+        select = str(input())
+        if select == "r":
+            return
+        else:
+            print("invaild choice!")
+
+def view():
+    print("this is view()")
+    return
 
 def milkSpider():
     if middlewares.precheck():
         start_time = time.time()
         middlewares.mainThread()
-        print("Totally spend " + str(round(time.time() - start_time, 2)) + " secends")
+        print("Totally spend " + str(round(time.time() - start_time, 2)) + " seconds")
     print("milkSpider done.")
 
+def aexit():
+    print("bye!")
+    exit()
+
 if __name__ == "__main__":
-    milkSpider()
+    # milkSpider()
+    main()

settings.py

@@ -43,4 +43,36 @@ USER_AGENT = [
 COOKIES_FILENAME = "cookies.json"
 
 # 历史价格查询网站 vveby.com
-HISTORY_PRICE_URL = r"https://www.vveby.com/search?keyword="
+HISTORY_PRICE_URL = r"https://www.vveby.com/search?keyword="
+
+# 视图字体设置
+FONT = ['Microsoft YaHei']
+
+# banner信息
+BANNER = {
+    "main": '''
+#================*main*=================#
+#   1.主界面
+#   2.介绍
+#   3.数据可视化
+#   4.向Redis中填充数据
+#   5.清空Redis队列缓存
+#   6.调用 milkSpider
+#   7.退出
+#========================================#    
+''',
+    "introduce": '''
+#================*introduce*=================#
+#   1.使用Selenium + requests分情况地爬取数据
+#   2.使用线程池缩减爬取总流程
+#   3.使用Redis调度爬取队列并实现分布式
+#   4.使用Matplotlib将数据可视化
+#   输入[r]返回上一级...
+#=============================================#
+''',
+    "view": '''
+ 
+    
+    
+'''
+}

view.py

@@ -0,0 +1,64 @@
+# -*- coding: utf-8 -*-
+from matplotlib import pyplot as plt
+import matplotlib
+import settings
+import re
+
+plt.rcParams['font.family'] = settings.FONT
+
+class view:
+
+    def __init__(self, itemList):
+        self.id = itemList[0]
+        self.string = itemList[1]
+
+    def getFont():  # 列出可用的字体
+        font = sorted([f.name for f in matplotlib.font_manager.fontManager.ttflist])
+        for i in font:
+            print(i)
+
+    def main(self):
+
+        def str2data(string) -> list:
+            reg = r"[+-]?([0-9]*\.?[0-9]+|[0-9]+\.?[0-9]*)"
+            pattern = re.compile(reg)
+            return pattern.findall(string)
+
+        def show(itemList):
+
+            x = []
+            y = []
+
+            while itemList:
+                temp = itemList.pop()
+
+                date = temp[0] + "月" + temp[1] + "日"
+                price = "￥" + temp[2] + "元"
+                x.append(date)
+                y.append(price)
+
+                date = temp[3] + "月" + temp[4] + "日"
+                price = "￥" + temp[5] + "元"
+                x.append(date)
+                y.append(price)
+
+            plt.title("价格趋势")
+            plt.bar(x, y, color = 'g', align = 'center')
+            plt.xticks(size = 10.0, rotation = 45)
+            plt.xlabel("日期")
+            plt.ylabel("价格")
+            plt.plot(x, y, color = 'red', linewidth = 5.0, linestyle = '--')  
+
+            plt.show()
+
+        itemList = []
+        for astr in self.string.split(';'):
+            strList = str2data(astr)
+            try:
+                print(astr)
+                itemList.append(strList)
+            except BaseException:
+                break
+        show(itemList)
+
+def getData()