import tkinter as tk
from main_tk import root

def onclick(event):
    results = ask_text.get()
    print(results)
    f = open('bb.txt', 'w')
    f.write(results)
    f.close()
 #   print(ask_text.get())

def tk_button():
    root = tk.Tk()
    root.geometry("500x300")
    l1 = tk.Label(root, text="请使用扫码枪扫码二维码",
                  font=("黑体", 15))  # 标签

    l1.pack()  # 指定包管理器放置组件
    ask_text = tk.Entry()  # 创建文本框
    ask_text.pack()

def tk_action():
    root.bind('<Return>', onclick)
    button = tk.Button(root, text="确定")
    button.bind('<Button-1>', onclick)
    button.pack()
    root.mainloop()

if __name__ == "__main__":
    tk_button()
    tk_action()

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python