#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Author:    xurongzhong#126.com wechat:pythontesting qq:37391319
# qq群：144081101 591302926  567351477
# CreateDate: 2018-06-07
# square.py
# Draw a square

from turtle import *

forward(100)
left(90)
forward(100)
left(90)
forward(100)
left(90)
forward(100)
left(90)

exitonclick()