NameError：名称“win”未使用 tkinter python 定义

Question

执行此代码后，我收到错误win未找到从不同函数运行tkinter很重要，因为这是作业法典：import tkinter as tkfrom tkinter import *def zui(kaj,saj):    zun=kaj    kaj=kaj+"=tk.Tk()"    exec(kaj)    saj=zun+".title('"+saj+"')"    exec(saj)def zabel(self,naj,iaj,oaj,baj,gaj,taj):    spsp=self+"="+"Label("+naj+", text='"+iaj+"', bg='"+oaj+"', height="+gaj+", width="+taj+",fg='"+baj+"')"    spsp=str(spsp)    exec(spsp)def zosition(qak,iak,nak):    sspp=qak+".grid(row="+iak+", column="+nak+")"    exec(sspp)def zainzoop(tak):    sft=tak+".mainloop()"    exec(sft)zui("win","zahid app")zabel("label","win","hello world","white","black","4","10")zosition("win","1","1")zainzoop("win")追踪：Traceback (most recent call last):  File "c:/PyProjects/Patient Data Entry/hello.py", line 20, in <module>    zabel("label","win","hello world","white","black","4","10")  File "c:/PyProjects/Patient Data Entry/hello.py", line 12, in zabel    exec(spsp)  File "<string>", line 1, in <module>NameError: name 'win' is not defined

Answer 1

这是使用 tkinter 的一种非常奇怪的方式，无论如何我该判断谁。 采取一个参数来做出声明。这是执行官的样子：exec()globals()global

exec(spsp,globals())

exec(sspp,globals())

exec(sft,globals())

最后，应该这样称呼：zosition()

zosition("label","1","1")

以防万一您对它通常的样子感到好奇：

import tkinter as tk

kaj = tk.Tk()

kaj.title('zahid app')

spsp = tk.Label(kaj,text='Hello World',bg='white',fg='black',height=4,width=10)

spsp.grid(row=1,column=1)

kaj.mainloop() #much easier right?