Python基础

Pycharm开发环境设置与熟悉。

练习基本输入输出：

print('你好,{}.'.format(name))

uprint(sys.argv)

库的使用方法：

import ...

from ... import ...

条件语句：

    if (abs(pos()))<1:

        break

循环语句：

for i in range(5):

while True:

函数定义：

def mygoto(x,y):

def drawjx(r):

画一面五星红旗：

import sys
import turtle
from turtle import *

sys.argv

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

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

turtle.bgcolor('red')
turtle.color('yellow')
turtle.fillcolor('yellow')
turtle.setup(600,400,120,120)
turtle.hideturtle()

mygoto(-250,75)
draw_star(80)

turtle.right(50)
mygoto(-140,150)
draw_star(30)

turtle.left(50)
mygoto(-110,100)
draw_star(30)

mygoto(-110,40)
draw_star(30)

turtle.left(50)
mygoto(-140,-10)
draw_star(30)

turtle.done(