Python中tkinter如何退出，具体是在多线程下面如何退出
弄了一个 windown10 后台循环读文件程序。程序运行后最小化到桌面右下角。在右下角图标上面有 3 个功能菜单，一个显示“配置参数”界面，一个显示“运行列表”界面，一个退出按钮
“配置参数”界面可以正常显示关闭。 “运行列表”界面关闭后，点击桌面右下角退出按钮后，程序退出隔一会儿会报错,报错内容如下:
Exception ignored in: <bound method Variable.__del__ of <tkinter.StringVar object at 0x03DFAEF0>>
Traceback (most recent call last):
File "C:\Users\85447\AppData\Local\Programs\Python\Python36-32\lib\tkinter\__init__.py", line 329, in __del__
if self._tk.getboolean(self._tk.call("info", "exists", self._name)):
RuntimeError: main thread is not in main loop
Tcl_AsyncDelete: async handler deleted by the wrong thread
此段代码可能是产生报错原因
instrserial_button = Entry(self, textvariable=self.dec_name_dict[dish], width=15,
bg='white',state='readonly')#.grid(row=j, column=3)
使用 sysTrayIcon 做的桌面右下角图标,主要代码摘抄这里
def showRegSet_sys(sysTrayIcon):
try:
title = u'reg instrserial(NET)'
w1hd2 = win32gui.FindWindow(0, title)
# w1hd = 0
print ("w1hd2",w1hd2)
if w1hd2 ==0:
#print ("w1hd==0")
Regroot = Tk()
# decroot.wm_attributes('-topmost',1)
Regroot.geometry("400x300")
app2 = regWindow(Regroot)
def on_focus_out(event):
if event.widget == Regroot:
Regroot.destroy()
# Regroot.quit
Regroot.bind("<FocusOut>", on_focus_out)
Regroot.mainloop()
else:
win32gui.SetForegroundWindow(w1hd2)
except Exception as E:
pass
print(E)
class regWindow(Frame):#弹出桌面框显示类
"""定义一个 window 类，window 的父类是 frame，这样 window 就用了 frames 的属性和功能"""
def __init__(self,master=NONE):
#__int()__这里是一个构造函数
Frame.__init__(self,master)
self.master=master
# self.reg_instr = p_query(
# """SELECT instrid,instrserial,instrsn,register_dt,install_dt FROM lab_instrument1 order by instrid """)
self.reg_instr = [(1, '230', '1mvpwtpkdv'), (2, '500', 'yxc3juy5p3')]
self.initwindow()
# self.initwindow2()
def initwindow(self):#tkinter 模块添加按钮，相对于长提多了如下部分代码
#设置窗体标题
self.master.title("reg instrserial(NET)")
self.sv = StringVar()
self.sv2 = StringVar()
self.pack(side="top", fill="x")
# dishes=[("1","23"),("2","gsdf"),("3","fdgsrd"),("4","dfg")]
self.order = {}
self.add_buttons = {}
self.instrserial_button_dict={}
self.price_labels = {}
self.order_labels = {}
self.state_dict = {}
self.svv2 = {}
self.svv = {}
self.dec_name_dict = {}
j = 2
self.en6 = StringVar()
nianling2 = Entry(self, width=25, bg='white', state='readonly', textvariable=self.en6).grid(row=j-1, column=1, columnspan=2)
self.en6.set("uuu")
Button_chaxun = Button(self, text='关闭', command=self.clinet_exit).grid(row=j-1, column=4)
# Button_chaxun = Button(self, text='关闭 2', command=self.master.quit).grid(row=j - 1, column=3)
for dish in self.reg_instr:
self.svv[dish[0]] = StringVar()
self.dec_name_dict[dish[0]] = StringVar()
Label(self, text="ID").grid(row=j, column=1)
Label(self, text="码").grid(row=j, column=2)
for i in self.reg_instr:
j += 2
print("j:",j)
# dish, price = dish_data[0], dish_data[1].encode('latin-1').decode('gbk')
instrid, instrserial, instrsn = i
dish = i[0]
name = i[1].encode('latin-1').decode('gbk')
self.state_dict[dish] = 'normal'
self.svv2[dish] = dish
self.dec_name_dict[dish].set(name)
sn_code = 10
if sn_code > 0:
b = Entry(self, width=15, bg='white', state='readonly')#.grid(row=j, column=2)
instrserial_button = Entry(self, textvariable=self.dec_name_dict[dish], width=15,
bg='white',state='readonly')#.grid(row=j, column=3)
else:
pass
# b = Entry(self, width=15, bg='white', state='readonly')
# b = Entry(self, textvariable=self.svv[dish], validate="focusout", width=15, bg='white', state=self.state_dict[dish],
# validatecommand=lambda d=self.svv[dish], k=dish: self.add_dish_to_order(d, self.state_dict[dish], k))
# instrserial_button = Entry(self, textvariable=self.dec_name_dict[dish], validate="focusout", width=15,
# bg='white',state=self.state_dict[dish],
# validatecommand=lambda d=self.dec_name_dict[dish],instrid=dish, k=name: self.add_dec_name(d,instrid,k))#.grid(row=j, column=3)
# # b['state'] = 'readonly'svv2[dish]
# # print(dish)
self.add_buttons[dish] = b
self.add_buttons[dish].grid(row=j, column=2)
self.instrserial_button_dict[dish]=instrserial_button
self.instrserial_button_dict[dish].grid(row=j, column=3)
def add_dish_to_order(self, d, dish, i):
return True
def add_dec_name(self, d, instrid, i):
return True
def clinet_exit(self):
# self.master.deiconify()
# print('showRegSet()')
self.master.destroy()
menu_options = ((‘显示(S)’, None,showDecSet),
(‘other’, None, ((‘解码注册’, None, showRegSet_sys),
))
)
Python中tkinter如何退出，具体是在多线程下面如何退出
