auto save

1.py

 import turtle
 import turtle
 pen=turtle.Pen()
 pen=turtle.Pen()
 pen.pensize(5)
 pen.pensize(5)
+pen.goto(0,0)
 pen.pencolor("blue")
 pen.pencolor("blue")
 pen.circle(50)
 pen.circle(50)
-
+pen.penup()
+pen.goto(110,0)
+pen.pendown()
 pen.pencolor("black")
 pen.pencolor("black")
-pen.
+pen.circle(50)
+pen.penup()
+pen.goto(220,0)
+pen.pendown()
+pen.pencolor("red")
+pen.circle(50)
+pen.penup()
+pen.goto(330,0)
+pen.pendown()
+pen.pencolor("yellow")
+pen.penup()
+pen.goto(50,-70)
+pen.pendown()
+pen.circle(50)
+pen.pencolor("green")
+pen.penup()
+pen.goto(160,-70)
+pen.pendown()
+pen.circle(50)
 turtle.done()
 turtle.done()
\ No newline at end of file

3.py

+username="python"
+userpassword="123456"
+while True:
+    name=input("请输入用户名:")
+    password=input("请输入密码:")
+    if name==username and password==userpassword:
+        print("登录成功!")
+        break
+    print("错误！密码错误！")
+print("迎来")
\ No newline at end of file