python练手_57-画线

# -*- coding:utf-8 -*-
# @Author: CH
"""
@project: python study
@time:2019/1/7-23:51
@file_name:【程序57】画线.py
@IDE:PyCharm 
@else: DO NOT STOP STUDYING!!!
"""
# 题目 画图，学用line画直线。
#
# 程序分析 无。
if __name__ == '__main__':
    from tkinter import *

    canvas = Canvas(width=300, height=300, bg='green')
    canvas.pack(expand=YES, fill=BOTH)
    x0 = 263
    y0 = 263
    y1 = 275
    x1 = 275
    for i in range(19):
        canvas.create_line(x0, y0, x0, y1, width=1, fill='red')
        x0 = x0 - 5
        y0 = y0 - 5
        x1 = x1 + 5
        y1 = y1 + 5

    x0 = 263
    y1 = 275
    y0 = 263
    for i in range(21):
        canvas.create_line(x0, y0, x0, y1, fill='red')
        x0 += 5
        y0 += 5
        y1 += 5

    mainloop()