clock

webapp/app.py

@@ -1,15 +1,118 @@
 import os
 
 from flask import Flask
+from turtle import *
+from datetime import *
 
 app = Flask(__name__)
 
+
+
+def Skip(step):
+    penup()
+    forward(step)
+    pendown()
+ 
+def mkHand(name, length):
+    #注册Turtle形状，建立表针Turtle
+    reset()
+    Skip(-length*0.1)
+    begin_poly()
+    forward(length*1.1)
+    end_poly()
+    handForm = get_poly()
+    #注册Turtle形状命令register_shape(name,shape=None)
+    register_shape(name, handForm)
+ 
+def Init():
+    global secHand, minHand, hurHand, printer
+    mode("logo")# 重置Turtle指向北
+    #建立三个表针Turtle并初始化
+    #第二个参数为长度
+    mkHand("secHand", 125)
+    mkHand("minHand",  130)
+    mkHand("hurHand", 90)
+    secHand = Turtle()
+    secHand.shape("secHand")
+    minHand = Turtle()
+    minHand.shape("minHand")
+    hurHand = Turtle()
+    hurHand.shape("hurHand")
+    for hand in secHand, minHand, hurHand:
+        hand.shapesize(1, 1, 3)
+        hand.speed(0)
+    #建立输出文字Turtle
+    printer = Turtle()
+    printer.hideturtle()
+    printer.penup()
+ 
+def SetupClock(radius):
+    #建立表的外框
+    reset()
+    pensize(7)
+    for i in range(60):
+        Skip(radius)
+        if i % 5 == 0:
+            forward(20)
+            Skip(-radius-20)
+        else:
+            dot(5)
+            Skip(-radius)
+        right(6)
+ 
+def Week(t):    
+    week = ["星期一", "星期二", "星期三",
+            "星期四", "星期五", "星期六", "星期日"]
+    return week[t.weekday()]
+ 
+def Date(t):
+    y = t.year
+    m = t.month
+    d = t.day
+    return "%s %d %d" % (y, m, d)
+ 
+def Tick():
+    #绘制表针的动态显示
+    #当前时间
+    t = datetime.today()
+    second = t.second + t.microsecond*0.000001
+    minute = t.minute + second/60.0
+    hour = t.hour + minute/60.0
+    secHand.setheading(6*second)
+    minHand.setheading(6*minute)
+    hurHand.setheading(30*hour)
+ 
+     #介入Tracer函数以控制刷新速度
+    tracer(False)  
+    printer.forward(65)
+    printer.write(Week(t), align="center",
+                  font=("Courier", 14, "bold"))
+    printer.back(130)
+    printer.write(Date(t), align="center",
+                  font=("Courier", 14, "bold"))
+    printer.home()
+    tracer(True)
+ 
+    ontimer(Tick, 100)#100ms后继续调用tick
+
+
 @app.route('/')
 def hello():
     provider = str(os.environ.get('PROVIDER', 'world'))
-    return 'Hello '+provider+'!' +'This is a test, the last one!'
+    a = os.linesep
+    print('Hello '+provider+'!' +'%sThis is a test, the last one!'%(a))
+    tracer(False)
+    Init()
+    SetupClock(160)
+    tracer(True)
+    Tick()
+    mainloop()
+ 
 
 if __name__ == '__main__':
     # Bind to PORT if defined, otherwise default to 5000.
     port = int(os.environ.get('PORT', 5000))
     app.run(host='0.0.0.0', port=port)
+    
+
+