如何完成倒计时并且带有皮肤的计时器？

倒计时

import time
print('{:02}:{:02}:{:02}'.format(13,4,57))
def countdown(t):
    t = int(t)
    while t:

        min,sec = divmod(t,60)
        #print(min,sec)
        timer = '{:02}:{:02}'.format(min,sec)
        #print(timer)
        # '{:02}:{:02}:{:02}'.format(13,4,57)
        #c = f"{min}:{sec}"
        print(timer)
        time.sleep(1)
        t -= 1
    print("time's up")

t = input("Enter the times in secs秒: ")
#countdown(t)

带皮肤的数字时钟

# skin
from tkinter import *
from tkinter.ttk import *
from time import strftime
root = Tk()
root.title('Digital clock')
label = Label(root,font=('aerial',40),background='black',foreground='white')

def timer():
    strs = strftime("%H:%M:%S %p")
    label.config(text=strs)
    label.after(1000,timer)

label.pack(anchor='center')
timer()

mainloop()

如何完成倒计时并且带有皮肤的计时器？

# Final Countdown

from tkinter import *
from tkinter.ttk import *
from time import strftime
root = Tk()
root.title('Digital clock')
label = Label(root,font=('aerial',40),background='black',foreground='white')
#label = Label(root,font=('Microsoft YaHei',40),background='dark grey',foreground='white')

def st(t):
    while t >= 0:
        min, sec = divmod(int(t), 60)
        # print(min,sec)
        strs = '{:02}:{:02}'.format(min, sec)
        time.sleep(1)
        t -= 1
        return strs

it = iter([i for i in range(t)][::-1])
def timer():
    #strs = strftime("%H:%M:%S %p")
    t = next(it)
    if t:
        time.sleep(0.1)
        label.config(text=st(t))
        label.after(1000, timer)
label.pack(anchor='center')
timer()
mainloop()

倒计时停在 00：01时不动

比较流行的动态图

msedge_n4FoekCcRa.gif

import plotly.express as px
from vega_datasets import data
df = data.disasters()
df = df[df.Year > 1990]
fig = px.bar(df,
             y="Entity",
             x="Deaths",
             animation_frame="Year",
             orientation='h',
             range_x=[0, df.Deaths.max()],
             color="Entity")
# improve aesthetics (size, grids etc.)
fig.update_layout(width=1000,
                  height=800,
                  xaxis_showgrid=False,
                  yaxis_showgrid=False,
                  paper_bgcolor='rgba(0,0,0,0)',
                  plot_bgcolor='rgba(0,0,0,0)',
                  title_text='Evolution of Natural Disasters',
                  showlegend=False)
fig.update_xaxes(title_text='Number of Deaths')
fig.update_yaxes(title_text='')
fig.show()

可视化视觉比较炫的

msedge_TvvIDemjKH.gif

import plotly.express as px
df = px.data.gapminder()
fig = px.scatter(
    df,
    x="gdpPercap",
    y="lifeExp",
    animation_frame="year",
    size="pop",
    color="continent",
    hover_name="country",
    log_x=True,
    size_max=55,
    range_x=[100, 100000],
    range_y=[25, 90],

    #   color_continuous_scale=px.colors.sequential.Emrld
)
fig.update_layout(width=1000,
                  height=800,
                  xaxis_showgrid=False,
                  yaxis_showgrid=False,
                  paper_bgcolor='rgba(0,0,0,0)',
                  plot_bgcolor='rgba(0,0,0,0)')

按国别的人口变化