python练习题001

一、python之禅

在python交互式环境中输入import this，然后按下回车键，可以看到Tim Peter撰写的python之禅

二、使用turtle绘制图形

2.1 我们先绘制一个正方形

import turtle

turtle.pensize(4)
turtle.pencolor('red')
turtle.forward(100)
turtle.right(90)
turtle.forward(100)
turtle.right(90)
turtle.forward(100)
turtle.right(90)
turtle.forward(100)
turtle.mainloop()

2.2 绘制圆形

import turtle

turtle.pensize(4)
turtle.color('red')
turtle.circle(39)
turtle.done()

2.3 绘制文本

简单写个田字

import turtle

turtle.up()
turtle.goto(0,100)
turtle.down()
turtle.left(90)
turtle.forward(40)
turtle.left(90)
turtle.forward(50)
turtle.left(90)
turtle.forward(40)
turtle.left(90)
turtle.forward(50)
turtle.backward(25)
turtle.left(90)
turtle.forward(40)
turtle.right(90)
turtle.forward(25)
turtle.right(90)
turtle.forward(20)
turtle.right(90)
turtle.forward(50)

turtle.mainloop()