| from tkinter import * root = Tk() w = Canvas(root, width=200, height=100) w.pack() # 画一条黄色的横线 w.create_line(0, 50, 200, 50, fill="yellow") # 画一条赤色的竖线（虚线） w.create_line(100, 0, 100, 100, fill="red", dash=(4, 4)) # 中心画一个蓝色的矩形 w.create_rectangle(50, 25, 150, 75, fill="blue") mainloop() 我怎么都看不懂怎么画的w.create_line(0, 50, 200, 50, fill="yellow")内里的0, 50, 200, 50, 什么意思它是怎么体现位置的啊，最少得有个x，y轴吧， |
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