Nancy -用tkinter测手速

import tkinter
import time

t1 = time.time()
time.sleep(0.1)
myWindow = tkinter.Tk()
myWindow.geometry("900x600")
myWindow.title("点赞")
var = tkinter.StringVar()
a = 0
def zan():
    global a
    a = a+1
    la["text"] = "手速：%f"%(a/(time.time()-t1))


la = tkinter.Label(
    myWindow,
    text = "手速：0",
    bg = "#FFFAFA",
    fg = "sky blue",
    font =(None,30),
    width = 20,
    height = 5,
)
la.pack()

b1 = tkinter.Button(
    myWindow,
    text = "点赞",
    bg = "black",
    fg = "pink",
    width = 20,
    height = 7,
    command = zan
)
b1.pack()

myWindow.mainloop()