python第二节课

import turtle
turtle.shape('turtle')
turtle.speed(5)
turtle.color('green')
var=1
while var == 1:
      for i in range(5):
          turtle.forward(200)
          turtle.right(144)
   

无限循环的五角星

from turtle import*

for i in range(5）：
     up()
     goto(0,-20*i)
     down()
     circle(20*i)

　用循环画同心圆

import turtle
turtle.shape('turtle')
turtle.speed(5)
turtle.color('yellow')
turtle.bgcolor('red')
turtle.fillcolor('yellow')

def my_goto(x,y):
    turtle.up()
    turtle.goto(x,y)
    turtle.down()

def my_star5(r):
    turtle.begin_fill()
    for i in range(5):
        turtle.forward(r)
        turtle.right(144)
        turtle.end_fill()

my_goto(-250,100)
my_star5(100)

my_goto(-150,75)
my_star5(50)

my_goto(-100,50)
my_star5(50)

my_goto(-50,25)
my_star5(50)

my_goto(-0,0)
my_star5(50)

用函数画了五个五角星

import turtle

def draw_diamond(brad):
    brad.forward(100)
    brad.right(45)
    brad.forward(100)
    brad.right(135)

def draw_art():
    window=turtle.Screen()
    window.bgcolor("pink")

    brad=turtle.Turtle()
    brad.shape('turtle')
    brad.color('yellow')
    brad.speed(100)

    for i in range(1,37):
        draw_diamond(brad)
        draw_diamond(brad)
        brad.left(10)

draw_art()

画一朵花

r = input("请输入学号：")
print("学年:",r[:4])
print(r[4:6],":代表网络工程")
print("学号:",r[10:12])

输入学号识别年级专业序号

r = input("请输入数字:")
print('星期',r)

　星期几