每x秒更新一次从api拉取的变量

Question

我想要做的是从一个API中获取一个数字，并使用tkinter每隔60秒在屏幕上更新一次该数字。我能够通过API很好地获取数字，只是在弄清楚如何让它更新时遇到了麻烦。

from tkinter import *
import requests
import json

def getInfo(call):
        r = requests.get(call)
        return r.json()

key = " "
uuid = " "
url = f"https://api.hypixel.net/player?key={key}&uuid={uuid}"
data = getInfo(url)
uhcWins = "UHC Wins: " + str(data["player"]["stats"]["Duels"]["uhc_duel_wins"])

root = Tk()
root.title('Test Title')
root.geometry("500x500")

my_frame = Frame(root, width=500, height=200)
my_frame.pack(pady=20, ipady=20, ipadx=20)

my_label = Label(my_frame, text=uhcWins, font=("Helvetica", 40), fg="#09d2f6")
my_label.pack(pady=20)

root.mainloop()

Answer 1

您可以简单地使用root.after函数。以下是如何实现：

root.after(<time in millisecond>,<function>)

对于你的代码，你可以这样做：

from tkinter import *
import requests
import json

def getInfo():
    data = requests.get(url).json()
    my_label.config(text="UHC Wins: " + str(data["player"]["stats"]["Duels"]["uhc_duel_wins"]))
    root.after(60000,getInfo)
    #In every 60 second it will call the get info function and change the context of my_label

root = Tk()
root.title('Test Title')
root.geometry("500x500")

my_frame = Frame(root, width=500, height=200)
my_frame.pack(pady=20, ipady=20, ipadx=20)

my_label = Label(my_frame, font=("Helvetica", 40), fg="#09d2f6")
my_label.pack(pady=20)

key = " "
uuid = " "
url = f"https://api.hypixel.net/player?key={key}&uuid={uuid}"
data = getInfo()

root.mainloop()

Answer 2

你已经很接近了。需要使用IntVar()和set()方法来设置变量的值。请阅读本文以了解更多信息here

from Tkinter import *

def start():
    Inv = Tk()
    Inv.geometry("200x200")
data =500 # value from API 
    stats = IntVar() 
stats.set(data) #Set values to 500
print stats.get() # this will print 500

    EtkI2=Label(Inv, textvariable=stats).pack()
 
    # change the stats value after 5 seconds
    Inv.after(5000, stats.set, 100)

    # start the event loop
    Inv.mainloop()


start()