如何插入依赖于主Tkinter窗口的Tkinter画布

Question

我对编程很陌生，目前正在尝试用Tkinter库绘制仿射函数的图形(f(X)=ax+b格式下的函数)。我正在做一个名为图的类，但是当我想要插入画布对象时，它必须依赖于一个框架。如何在类中插入主框架和画布对象？以下是代码：

class Graph:
    def __init__(self, a="", b="", dimensions=None, graduation=None, graph=tkinter.Tk(), graphing_area=tkinter.Canvas(graph, height=500, width=500)):
        self.a = a
        self.b = b
        self.dimensions = dimensions
        self.graduation = graduation
        self.graph = graph
        self.graphing_area = graphing_area

Answer 1

启动图和graphing_area外部参数部分的值。如果您希望选项将图形设置为函数参数，默认情况下将graph参数设置为None，并且只有在值与None不同的情况下才将self.graph设置为graph。

class Graph:
    def __init__(self, a="", b="", dimensions=None, graduation=None, graph=None):
        self.a = a
        self.b = b
        self.dimensions = dimensions
        self.graduation = graduation
        if not graph:
            self.graph = tkinter.Tk()
        else:
            self.graph = graph
        self.graphing_area = tkinter.Canvas(self.graph, height=500, width=500)