save project

3.py/4.py

+import tkinter
+root=tkinter.Tk()
+root.title("注册")
+root.geometry("400x320+500+300")
+
+e1=tkinter.Entry(root,show=None,font=("宋体",14),bg="light grey",width=18)
+e1.place(x=140,y=80)
+e2=tkinter.Entry(root,show=None,font=("宋体",14),bg="light grey",width=18)
+e2.place(x=140,y=140)
+e3=tkinter.Entry(root,show=None,font=("宋体",14),bg="light grey",width=18)
+e3.place(x=140,y=200)
+root.mainloop()
\ No newline at end of file

diy2.py

+import turtle
+import random
+
+def tree(n):  # 画树枝
+    if n>=0:
+        pen.forward(n)
+        pen.right(30)
+        tree(n-10)
+        pen.left(60)
+        tree(n-10)
+        pen.right(30)
+        pen.up()
+        pen.backward(n)
+        pen.down()
+
+pen = turtle.Turtle()
+pen.color('sienna')
+# 画布大小
+w = turtle.Screen()
+w.bgcolor('wheat')      # wheat小麦
+
+# 移动到起点
+pen.left(90)
+pen.up()
+pen.backward(150)    # 后退
+pen.down()
+
+tree(60)
+turtle.done()