save project

LV3-2.py

+import turtle
+screen=turtle.Screen()
+screen.bgcolor("light blue")
+pen=turtle.Pen()
+pen.penup()
+pen.goto(100,-100)
+pen.write("Hi,诺依~\n 用 pyhton写电子贺卡真的是太有趣啦~\n 我也喜欢python~\n",font=("Times",30,"normal"))
+pen.hideturtle()
+
+pen1=turtle.Pen()
+pen1.pencolor("red")
+pen1.pensize(5)
+len=screen.textinput("提示","你想要多大的爱心呀？")
+lovesize=int(len)
+pen1.left(45)
+pen1.forward(2*lovesize)
+pen1.circle(lovesize,180)
+pen1.right(90)
+pen1.circle(lovesize,180)
+pen1.forward(2*lovesize)
+pen1.hideturtle()
+turtle.done()
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diy1.py

+# 利用write()帮助悟空给诺依回信吧~
+import turtle
+screen=turtle.Screen()
+screen.bgcolor("light blue")
+pen=turtle.Pen()
+pen.penup()
+pen.goto(100,-100)
+len=screen.textinput("100","100")
+len=int(len)
+pen=turtle.Pen()
+pen.write("你好\nSB.",font=("Times",30,"normal"))
+pen.hideturtle()
+len=60
+pen.penup()
+pen.goto(100,100)
+pen.pendown()
+pen.pensize(5)
+pen.pencolor("red")
+pen.left(45)
+pen.forward(2*len)
+pen.circle(len,180)
+pen.right(90)
+pen.circle(len,180)
+pen.forward(2*len)
+turtle.done()
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lv3-1.py

+username = "python"
+userpassword="hello"
+while True
+    name = input("请输入用户名：")
+    password = input("请输入密码：")
+    if name == username and password ==userpassword:
+        print("登陆成功！")
+        break
+    if name != username:
+        print("用户名不存在，请从新输入")
+        continue
+    if password != userpassword:
+        print("密码错误！请重新输入")
+
+print("欢迎来到贝尔编程")

lv3.py

+
+import turtle
+screen=turtle.Screen()
+screen.bgcolor("light blue")
+pen=turtle.Pen()
+pen.penup()
+pen.goto(100,-100)
+
+pen=turtle.Pen()
+pen.write("你好.",font=("Times",30,"normal"))
+pen.hideturtle()
+len=60
+pen.penup()
+pen.goto(100,100)
+pen.pendown()
+pen.pensize(5)
+pen.pencolor("red")
+pen.left(45)
+pen.forward(2*len)
+pen.circle(len,180)
+pen.right(90)
+pen.circle(len,180)
+pen.forward(2*len)
+turtle.done()
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