Question

Python 2.7，我希望毫不拖延地实时打印消息。即当我打印消息时，它会调用函数Mainprintf，但它会在文本字段中一次打印所有消息。但我希望它应该在Text小部件中逐个打印，以便我可以看到它正在打印。

注意：一个接一个的打印只能在终端中看到这个问题在任何论坛都没有完全回答。有谁能建议以下查询？示例代码如下：

from Tkinter import *
import time
import os
import sys

Gray = 'Gray'
def UserInput():
   global UI_MainForm
   UI_MainForm = Tk()


   UI_MainForm.resizable(0,0)
   UI_MainForm.geometry("350x450+500+25") #Wight X height + X - Position + Y - Position
   UI_MainForm.title("Main Menu")

   UI_MainForm.deiconify() 



   labelframe = LabelFrame(UI_MainForm,text="Please select the below options:",width=300, height=100,bd = 2)
   labelframe.pack(fill="both")
   labelframe.config(relief=RIDGE)


   labelframe1 = LabelFrame(UI_MainForm,text="User Input:'Options'",width=300, height=100,bd = 2)
   labelframe1.pack(pady=8,fill="both")
   labelframe1.config(relief=FLAT)

   #Frame to add the Scrollbar and Text box
   frame = Frame(UI_MainForm,width=200, height=250)
   frame.pack(fill = 'both',padx=3, pady=15)
   frame.config(relief=FLAT)

   global entrytext
   global entry
   entrytext = StringVar()
   entry = Entry(labelframe1,textvariable=entrytext,width=35)
   entry.pack(padx = 1, pady = 5)


   Input = entrytext.get()




    #Main Menu Label Display items
   MainMenuDisplay =  [{"ID": 1,"Description": "Display1"},
                    {"ID": 2,"Description": "Display2"}]


   for menu in MainMenuDisplay:
      temp_text = '{0}. {1}'.format(menu['ID'], menu['Description'])
      Label(labelframe, text=temp_text).pack(anchor = W)


   ButtonOK = Button(labelframe1, text = "OK", command =EventButtonOK, width =15)
   ButtonOK.pack(side = LEFT, padx = 15, pady = 15)
   UI_MainForm.bind('<Return>', EventButtonOK)

   ButtonEXIT = Button(labelframe1, text = "EXIT", command =EventButtonExist, width =15)
   ButtonEXIT.pack(side = RIGHT, padx = 15)

   UI_MainForm.bind('<Escape>', EventButtonExist)

   global Main_UI_SB
   global Main_UI_TxtBar

   Main_UI_SB = Scrollbar(frame)
   Main_UI_SB.pack(side=RIGHT, fill=Y)

   Main_UI_TxtBar = Text(frame, height=30, width=45,wrap=WORD)
   Main_UI_TxtBar.pack(side=LEFT, fill=Y)

   Main_UI_SB.config(command=Main_UI_TxtBar.yview)
   Main_UI_TxtBar.config(yscrollcommand=Main_UI_SB.set)
   Main_UI_TxtBar.tag_configure('Red', foreground = 'red')
   Main_UI_TxtBar.tag_configure('Black', foreground = 'black')
   Main_UI_TxtBar.tag_configure('Green', foreground = '#005A2B')
   Main_UI_TxtBar.tag_configure('Gray', foreground = 'grey')


   UI_MainForm.mainloop()

   return;

UserInput()

def EventButtonExist(event=None):
   UI_MainForm.destroy()

def EventButtonOK(event=None):
   entry.selection_range(0, END)
   Main_UI_TxtBar.delete(1.0,END)
   # Input = int(entrytext.get())
  Input = MainTakeStrInt()


  if (Input == 1):
     display1();
  elif (Input == 2):
     display2();
  else:
     Mainprintf('The Input is not valid',Red)

  return;

def MainTakeStrInt():
  cast_value = (entrytext.get())

  try:
    cast_test = int(cast_value)
    return cast_test
  except ValueError:
      return cast_value

我的显示信息，调用函数Mainprintf

 def display2():
    Main_UI_TxtBar.delete(1.0,END)
    entry.selection_range(0, END)

    Mainprintf('\nEntering Message1', Gray)
    time.sleep(2)
    Mainprintf('\nEntering Message2', Gray)
    time.sleep(2)
    Mainprintf('\nEntering Message3', Gray)
    return;

 def display1():    
    Mainprintf('\nEntering Message1', Gray)
    time.sleep(2)
    Mainprintf('\nEntering Message2', Gray)
    time.sleep(2)
    Mainprintf('\nEntering Message3', Gray)
    return;

Mainprintf功能：

def Mainprintf(Message, Color):
   global Main_UI_SB
   global Main_UI_TxtBar
   Main_UI_TxtBar.insert(END, Message, Color)
   Main_UI_TxtBar.see("end")
   print Message
   return;

Python tkinter文本框小部件实时插入消息，无延迟打印

0 个答案: