auto save

diy2.py

+i=3
+username = "python"
+userpassword = "123456"
+while True:
+    if i>0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        i-=1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break      
+        if username!=name:
+            print("用户名不存在，请重新输入")
+            name = input("请输入用户名:")
+        if userpassword!=password:
+            print("密码不存在，请重新输入")
+            password = input("请输入密码:") 
+        continue  
+    else:
+        print("系统已打通110") 
+        exit()  
+print("欢迎来到贝尔编程!")
\ No newline at end of file

dry.py

+import turtle
+screen=turtle.Screen()
+screen.bgcolor("light blue")
+pen=turtle.Pen()
+pen.penup()
+pen.goto(200,-100)
+pen.write("新年快乐，\n祝你在新的一年里,\n天天向上,学业有成",font=40)
+pen.heading()
+pen1=turtle.Pen()
+pen1.pencolor("red")
+pen1.pensize(5)
+len=screen.textinput("提示:","请输入爱心的大小")
+ant=int(len)
+pen1.left(45)
+pen1.forward(2*ant)
+pen1.circle(ant,180)
+pen1.right(90)
+pen1.circle(ant,180)
+pen1.forward(2*ant)
+pen1.hideturtle()
+turtle.done()
+