tkinter.Text这样为什么取不到文本？

1.     win = tk.Tk()
   
2.     win.geometry('300x200')
   
3.     tk.Label(win, text='保存目录', height=1, width=10).grid(row=1, column=0)
   
4.     txt_path = tk.Text(win, height=1, width=30, padx=10, pady=5)
   
5.     txt_path.grid(row=1, column=1)
   
6. 
   
7.     def down_video(sv):
   
8.         print(sv)
   
9.     def get_addr():
   
10.         t = txt_path.get(0.0, tk.END)
    
11.         print(t)
    
12. 
    
13. 
    
14.     tk.Button(win, text='down', width=10, height=1, command=lambda: down_video(sv=get_addr)).grid(row=2, column=0)
    
15.     tk.Button(win, text='test', command=get_addr).grid(row=3, column=0)
    
16.     win.mainloop()

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点test按钮可以print出tk.text输入的内容。
但是按down按钮，就显示<function get_addr at 0x000000000A81FE18>
是为什么？？？

1. import tkinter as tk
   
2. win = tk.Tk()
   
3. win.geometry('300x200')
   
4. tk.Label(win, text='保存目录', height=1, width=10).grid(row=1, column=0)
   
5. txt_path = tk.Text(win, height=1, width=30, padx=10, pady=5)
   
6. txt_path.grid(row=1, column=1)
   
7. 
   
8. def down_video(sv):
   
9.     print(sv)
   
10. def get_addr():
    
11.     t = txt_path.get(0.0, tk.END)
    
12.     return t
    
13.     # print(t)
    
14. 
    
15. # tk.Button(win, text='down', width=10, height=1, command=lambda: down_video(sv=get_addr)).grid(row=2, column=0)
    
16. tk.Button(win, text='down', width=10, height=1, command=lambda: down_video(sv=get_addr())).grid(row=2, column=0)
    
17. tk.Button(win, text='test', command=get_addr).grid(row=4, column=0)
    
18. win.mainloop()
    

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这样可以吗？

不行，不过解决了