python练习题（三十）：用line画直线

# 用line画直线。

from tkinter import *


class Line:
    def __init__(self):
        canvas = Canvas(width=500, height=500, bg='yellow')
        canvas.pack()

        x0, y0, x1, y1 = 10, 10, 500, 500
        for i in range(25):
            canvas.create_line(x0, y0, x0, y1, width=1, fill='red')
            x0 += 10
            y0 += 10
            x1 -= 10
            y1 -= 10

        mainloop()


if __name__ == '__main__':
    a_line = Line()

运行结果：