如何使用tkinter StringVar生成大于或小于的值

import tkinter as tk

def check_value():
    value = var.get()
    if value.isdigit():
        if int(value) > 10:
            result_label.config(text="Value is greater than 10")
        elif int(value) < 10:
            result_label.config(text="Value is less than 10")
        else:
            result_label.config(text="Value is equal to 10")
    else:
        result_label.config(text="Invalid input")

root = tk.Tk()
root.title("Value Checker")

var = tk.StringVar()

entry = tk.Entry(root, textvariable=var)
entry.pack()

check_button = tk.Button(root, text="Check Value", command=check_value)
check_button.pack()

result_label = tk.Label(root, text="")
result_label.pack()

root.mainloop()