在不关闭窗口的情况下刷新 tkinter 中的热图

Question

我在刷新框架时遇到一些问题tkinter。我应该关闭窗口来刷新我的框架。我的热传感器值每次都在变化。我看了root.after()，但我没有得到它。不关闭怎么办？我的代码在这里：try:    from tkinter import *except ModuleNotFoundError:    from tkinter import *  # Python 3f = open('text.txt', 'r')nodes_list = [[int(item) for item in line.split()] for line in f]heat_map = nodes_listheat_min = min(min(row) for row in heat_map)heat_max = max(max(row) for row in heat_map)print('hello')palette = (0, 0, 1), (0, .5, 0), (0, 1, 0), (1, .5, 0), (1, 0, 0)def pseudocolor(value, minval, maxval, palette):    """ Maps given value to a linearly interpolated palette color. """    max_index = len(palette)-1    # Convert value in range minval...maxval to the range 0..max_index.    v = (float(value-minval) / (maxval-minval)) * max_index    i = int(v); f = v-i  # Split into integer and fractional portions.    c0r, c0g, c0b = palette[i]    c1r, c1g, c1b = palette[min(i+1, max_index)]    dr, dg, db = c1r-c0r, c1g-c0g, c1b-c0b    return c0r+(f*dr), c0g+(f*dg), c0b+(f*db)  # Linear interpolation.def colorize(value, minval, maxval, palette):        """ Convert value to heatmap color and convert it to tkinter color. """        color = (int(c*255) for c in pseudocolor(value, minval, maxval, palette))        return '#{:02x}{:02x}{:02x}'.format(*color)  # Convert to hex string.root = Tk()root.title('Heatmap')width, height = 500, 500  # Canvas size.rows, cols = len(heat_map), len(heat_map[0])rect_width, rect_height = width // rows, height // colsborder = 1  # Pixel width of border around each.canvas = Canvas(root, width=width, height=height)canvas.pack()#goruntuyu gosteren kisimtext.txt 是这样的。22 5 9 15 22 20 20 2022 33 32 15 22 22 20 2023 34 33 15 22 22 20 2025 35 35 15 22 25 20 2012 15 35 15 10 5 20 2015 40 33 15 3 5 20 1516 32 25 15 12 22 50 1513 32 31 15 5 22 23 13

Answer 1

在这里试试这个。

将此函数添加到您的代码中。

def repeat():

    global f 

    f = open('text.txt', 'r')

    # This function will be called every 100millisecs 

    root.after(100, repeat) 

并root.mainloop()像这样调用它。

root.after(100, repeat)

root.mainloop()