day16-homework.py 文件源码

def main():
    windows = turtle.Screen()#????
    windows.bgcolor('blue')#????
    bran = turtle.Turtle()#????
    bran.shape('turtle')
    bran.color('yellow')
    bran.speed(2)#????
    for i in range(1,5):#????
        bran.forward(100)
        bran.right(45)
        bran.forward(100)
        bran.right(45)
        bran.forward(100)
        bran.right(45)
        bran.forward(100)
        bran.right(45)