【求助】封装后无法使用tkinter库中的get()属性,Python交流,技术交流,鱼C论坛

Aden 发表于 2022-7-25 22:09:27

【求助】封装后无法使用tkinter库中的get()属性

本帖最后由 Aden 于 2022-7-26 00:18 编辑

求各位大神指教，下面代码中我将代码封装后，在代码备注的地方写了个函数，调用Entry的get（），无法调用，但是封装前却可以调用，同样的语法封装class后无法调用是为啥啊，咋解决呢

import tkinter as tk
import time
from tkinter import *

class Root_page:

def off_work(self):
   self.page_main.grid_forget()
   self.page_wktime = tk.Frame(self.window)
   self.page_wktime.grid(row = 0,column=0,padx =78,pady =60)

   now_time= time.strftime('%Y-%m-%d %H:%M:%S')

   off_work_time = now_time + '17:30:00'
   make_off_time = time.mktime(time.strptime(off_work_time,'%Y-%m-%d %H:%M:%S'))
   interval_time = make_off_time - time.time()
   off_min = divmod(interval_time,60)

   time_label_1 = tk.Label(self.page_wktime,text=f"现在是 {(time.strftime('%H点%M分%S秒'))}",width= 25,height=2)
   time_label_2 = tk.Label(self.page_wktime,text=f"距离下班还有 {int(off_min)}分钟{round(off_min,3)}秒",width= 25,height=2)
   time_label_1.grid(row = 0,column=1,padx =30 ,pady =10)
   time_label_2.grid(row = 1,column=1,padx =30 ,pady =10)
   tk.Button(self.page_wktime,text='返回',width=15,command = self.back_main_1).grid(row = 2,column=1,padx =30 ,pady =30)

def back_main_1(self):
   self.page_wktime.grid_forget()
   self.page_main.grid(row = 0,column=1,padx =130,pady =30)

def back_main_2(self):
   self.page_set_time.place_forget()
   self.page_main.grid(row = 0,column=1,padx =130,pady =30)

def get_off_time(self):
   print(self.enter_int_1.get())
   print(self.enter_int_2.get())

def set_offtime(self):
   self.page_main.grid_forget()
   self.page_set_time = tk.Frame(self.window)
   self.page_set_time.place(relx = 0.5,rely=0.3,anchor=CENTER,relheight=0.75,relwidth=0.75)

   tk.Label(self.page_set_time,text = '时').place(x = 130,y=125)
   tk.Label(self.page_set_time,text = '分').place(x = 200,y=125)

   self.t1 = tk.StringVar()
   self.t2 = tk.StringVar()

   self.enter_int_1 = tk.Entry(self.page_set_time,textvariable=self.t1,width = 4).place(x=95,y=125)
   self.enter_int_2 = tk.Entry(self.page_set_time,textvariable=self.t2,width = 4).place(x =165,y=125)


   tk.Label(self.page_set_time,text = '注意：请使用24小时制，不足2位数请加0补位').place(relx = 0.5,rely=0.65,anchor=CENTER)
   tk.Button(self.page_set_time,text='返回',width=8,command = self.back_main_2).place(relx = 0.7,rely=0.8,anchor=CENTER)
   tk.Button(self.page_set_time,text='确定',width=8,command = self.get_off_time).place(relx = 0.3,rely=0.8,anchor=CENTER)
   #上一行command 调用函数get_off_time时无法调用tkinter库get()属性


def __init__(self,master):
   self.window = master
   self.window.title('摸鱼 Demo 1.0')
   self.window.geometry('400x400')
   self.window.resizable(width=False, height=False)


   self.page_main = tk.Frame(self.window)
   self.page_main.grid(row = 0,column=1,padx =130,pady =30)
   tk.Button(self.page_main,text='还有多久下班',width=15,command = self.off_work).grid(row = 0,column=1,padx =10 ,pady =10)
   tk.Button(self.page_main,text='设置下班时间',width=15,command = self.set_offtime).grid(row = 1,column=1,padx =10 ,pady =10)
   tk.Button(self.page_main,text='中午吃什么',width=15,).grid(row = 2,column=1,padx =10 ,pady =10)
   tk.Button(self.page_main,text='退出',width=15,command = self.window.quit).grid(row = 5,column=1,padx =10 ,pady =10)




if __name__ == '__main__':
window = tk.Tk()
Root_page(master = window)
window.mainloop()

临时号 发表于 2022-7-25 22:17:22

缩进问题
import tkinter as tk
import time
from tkinter import *

class Root_page:
def get_off_time(self):
   print(self.enter_int_1.get())
   print(self.enter_int_2.get())

def set_offtime(self):
   self.page_main.grid_forget()
   self.page_set_time = tk.Frame(self.window)
   self.page_set_time.place(relx = 0.5,rely=0.3,anchor=CENTER,relheight=0.75,relwidth=0.75)

   tk.Label(self.page_set_time,text = '时').place(x = 130,y=125)
   tk.Label(self.page_set_time,text = '分').place(x = 200,y=125)

   self.t1 = tk.StringVar()
   self.t2 = tk.StringVar()

   self.enter_int_1 = tk.Entry(self.page_set_time,textvariable=self.t1,width = 4).place(x=95,y=125)
   self.enter_int_2 = tk.Entry(self.page_set_time,textvariable=self.t2,width = 4).place(x =165,y=125)


   tk.Label(self.page_set_time,text = '注意：请使用24小时制，不足2位数请加0补位').place(relx = 0.5,rely=0.65,anchor=CENTER)
   tk.Button(self.page_set_time,text='返回',width=8,command = self.back_main_2).place(relx = 0.7,rely=0.8,anchor=CENTER)
   tk.Button(self.page_set_time,text='确定',width=8,command = self.get_off_time).place(relx = 0.3,rely=0.8,anchor=CENTER)
   #上一行command 调用函数get_off_time时无法调用tkinter库get()属性


def __init__(self,master):
   self.window = master
   self.window.title('摸鱼 Demo 1.0')
   self.window.geometry('400x400')
   self.window.resizable(width=False, height=False)


   self.page_main = tk.Frame(self.window)
   self.page_main.grid(row = 0,column=1,padx =130,pady =30)
   tk.Button(self.page_main,text='还有多久下班',width=15,command = self.off_work).grid(row = 0,column=1,padx =10 ,pady =10)
   tk.Button(self.page_main,text='设置下班时间',width=15,command = self.set_offtime).grid(row = 1,column=1,padx =10 ,pady =10)
   tk.Button(self.page_main,text='退出',width=15,command = self.window.quit).grid(row = 5,column=1,padx =10 ,pady =10)




if __name__ == '__main__':
window = tk.Tk()
Root_page(master = window)
window.mainloop()

qq1151985918 发表于 2022-7-25 22:18:52

估计不小心点了 tabel 键缩进问题

Aden 发表于 2022-7-25 23:59:11

qq1151985918 发表于 2022-7-25 22:18
估计不小心点了 tabel 键缩进问题

缩进应该没毛病，在vscode里标的很齐，层次我也检查过了

Aden 发表于 2022-7-26 00:03:15

临时号发表于 2022-7-25 22:17
缩进问题

我复制的时候第6行缩进错了，源码实际是没错的，但是问题不是缩进的，是找不到库的属性。。。

临时号 发表于 2022-7-26 00:06:40

Aden 发表于 2022-7-26 00:03
我复制的时候第6行缩进错了，源码实际是没错的，但是问题不是缩进的，是找不到库的属性。。。

我没报这个错误啊,只报了找不到off_work函数
D:\command\Python>python test.py
Traceback (most recent call last):
File "test.py", line 270, in <module>
Root_page(master = window)
File "test.py", line 258, in __init__
tk.Button(self.page_main,text='还有多久下班',width=15,command = self.off_wor
k).grid(row = 0,column=1,padx =10 ,pady =10)
AttributeError: 'Root_page' object has no attribute 'off_work'

Aden 发表于 2022-7-26 00:20:01

临时号发表于 2022-7-26 00:06
我没报这个错误啊,只报了找不到off_work函数

因为我复制的时候缩进错了，所以找不到，调整了缩进，就找到了，我把修改过的更新了，你再看看，我这边错误类型为下面的样子，就是找不到get（）

File "d:\Python 文件\【GUI】tkinter 实例\【UI学习】摸鱼Demo.py", line 38, in get_off_time
print(self.enter_int_1.get())
AttributeError: 'NoneType' object has no attribute 'get'

临时号 发表于 2022-7-26 00:35:09

Aden 发表于 2022-7-26 00:20
因为我复制的时候缩进错了，所以找不到，调整了缩进，就找到了，我把修改过的更新了，你再看看，我这边错 ...

果然经典错误,我之前也犯过
self.enter_int_1 = tk.Entry(self.page_set_time,textvariable=self.t1,width = 4).place(x=95,y=125)
self.enter_int_2 = tk.Entry(self.page_set_time,textvariable=self.t2,width = 4).place(x =165,y=125
这两行self.enter_int_1和self.enter_int_2被赋值成了什么,tk.Entry还是place函数执行后的返回值,答案是place函数执行后的返回值也就是None
而None没有get方法,所以报了错
解决方法:将self.enter_int_1 = tk.Entry(self.page_set_time,textvariable=self.t1,width = 4)与self.enter_int_1.place(x=95,y=125)分开写
代码:
import tkinter as tk
import time
from tkinter import *

class Root_page:

def off_work(self):
   self.page_main.grid_forget()
   self.page_wktime = tk.Frame(self.window)
   self.page_wktime.grid(row = 0,column=0,padx =78,pady =60)

   now_time= time.strftime('%Y-%m-%d %H:%M:%S')

   off_work_time = now_time + '17:30:00'
   make_off_time = time.mktime(time.strptime(off_work_time,'%Y-%m-%d %H:%M:%S'))
   interval_time = make_off_time - time.time()
   off_min = divmod(interval_time,60)

   time_label_1 = tk.Label(self.page_wktime,text=f"现在是 {(time.strftime('%H点%M分%S秒'))}",width= 25,height=2)
   time_label_2 = tk.Label(self.page_wktime,text=f"距离下班还有 {int(off_min)}分钟{round(off_min,3)}秒",width= 25,height=2)
   time_label_1.grid(row = 0,column=1,padx =30 ,pady =10)
   time_label_2.grid(row = 1,column=1,padx =30 ,pady =10)
   tk.Button(self.page_wktime,text='返回',width=15,command = self.back_main_1).grid(row = 2,column=1,padx =30 ,pady =30)

def back_main_1(self):
   self.page_wktime.grid_forget()
   self.page_main.grid(row = 0,column=1,padx =130,pady =30)

def back_main_2(self):
   self.page_set_time.place_forget()
   self.page_main.grid(row = 0,column=1,padx =130,pady =30)

def get_off_time(self):
   print(self.enter_int_1.get())
   print(self.enter_int_2.get())

def set_offtime(self):
   self.page_main.grid_forget()
   self.page_set_time = tk.Frame(self.window)
   self.page_set_time.place(relx = 0.5,rely=0.3,anchor=CENTER,relheight=0.75,relwidth=0.75)

   tk.Label(self.page_set_time,text = '时').place(x = 130,y=125)
   tk.Label(self.page_set_time,text = '分').place(x = 200,y=125)

   self.t1 = tk.StringVar()
   self.t2 = tk.StringVar()

   self.enter_int_1 = tk.Entry(self.page_set_time,textvariable=self.t1,width = 4)
   self.enter_int_1.place(x=95,y=125)
   self.enter_int_2 = tk.Entry(self.page_set_time,textvariable=self.t2,width = 4)
   self.enter_int_2.place(x =165,y=125)


   tk.Label(self.page_set_time,text = '注意：请使用24小时制，不足2位数请加0补位').place(relx = 0.5,rely=0.65,anchor=CENTER)
   tk.Button(self.page_set_time,text='返回',width=8,command = self.back_main_2).place(relx = 0.7,rely=0.8,anchor=CENTER)
   tk.Button(self.page_set_time,text='确定',width=8,command = self.get_off_time).place(relx = 0.3,rely=0.8,anchor=CENTER)
   #上一行command 调用函数get_off_time时无法调用tkinter库get()属性


def __init__(self,master):
   self.window = master
   self.window.title('摸鱼 Demo 1.0')
   self.window.geometry('400x400')
   self.window.resizable(width=False, height=False)


   self.page_main = tk.Frame(self.window)
   self.page_main.grid(row = 0,column=1,padx =130,pady =30)
   tk.Button(self.page_main,text='还有多久下班',width=15,command = self.off_work).grid(row = 0,column=1,padx =10 ,pady =10)
   tk.Button(self.page_main,text='设置下班时间',width=15,command = self.set_offtime).grid(row = 1,column=1,padx =10 ,pady =10)
   tk.Button(self.page_main,text='中午吃什么',width=15,).grid(row = 2,column=1,padx =10 ,pady =10)
   tk.Button(self.page_main,text='退出',width=15,command = self.window.quit).grid(row = 5,column=1,padx =10 ,pady =10)




if __name__ == '__main__':
window = tk.Tk()
Root_page(master = window)
window.mainloop()

Aden 发表于 2022-7-26 00:45:54

临时号发表于 2022-7-26 00:35
果然经典错误,我之前也犯过

这两行self.enter_int_1和self.enter_int_2被赋值成了什么,tk.Entry还是 ...

是的是的，这回可以了，大佬牛啊，我明白了，谢谢大佬

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【求助】封装后无法使用tkinter库中的get()属性