黑屏

我的這塊戴爾S2340Mc屏，黑色時完全就是一面鏡子！為了當鏡子用，我需要一塊黑色。另外div中height設1000%是不行，參考height: 100% not working。

浮動無邊黑屏

#!/usr/bin/python3
# -*- coding: utf8 -*-

#dnf install python3-matplotlib
#pip install matplotlib,fire

#指定起始坐標xy、寬度、高度和顏色，來畫一個填充好的矩形
#為了遮擋盜版電影頂部和底部的賭城廣告

import fire,matplotlib

def drawRectangle(x='0',y='0',width='400',length='400',color='black'):
    #"640x400+0+200"
    conf = str(width) + 'x' + str(length) + '+' + str(x) + '+' + str(y)
    # make sure Tk backend is used
    matplotlib.use("TkAgg")  
    import matplotlib.pyplot as plt
    # turn navigation toolbar off
    plt.rcParams['toolbar'] = 'None'
    plt.rcParams['figure.facecolor'] = color
    # create a figure and subplot
    fig, ax = plt.subplots(figsize=(2,2))
    #remove margins
    fig.subplots_adjust(0,0,1,1)
    # turn axes off
    ax.axis("off")
    # show image
    # im = plt.imread("black.png")
    # ax.imshow(im)
    
    # remove window frame
    fig.canvas.manager.window.overrideredirect(1)
    plt.get_current_fig_manager().window.wm_geometry(conf)
    plt.show()
    
#drawRectangle('10','980')

if __name__ == '__main__':
    fire.Fire(drawRectangle)
    

#默認在屏幕左上角生成一個400*400的黑屏
python drawRectangle.py
#在左下角（0，980）生成一個128*72的紅屏
python drawRectangle.py 0 980 128 72 red

本文更新於 2018/07/23。