如何让函数的print输出在gui界面显示，可以看下代码怎么改么

Question

函数的print输出要在gui界面显示，请问要怎么搞丫

下附我参考进行修改的代码，可以改成不是类的么，虽说我其实看不懂

import tkinter as tk
import sys


class ExampleApp(tk.Tk):
    def __init__(self):
        super(ExampleApp, self).__init__()

        toolBar = tk.Frame(self)
        toolBar.pack(side=tk.TOP, fill=tk.X)

        button1 = tk.Button(self, text='打印乘法表', command=self.print_stdout)

        button1.pack(in_=toolBar, side=tk.BOTTOM)
        self.text = tk.Text(self, wrap='word')
        self.text.pack(side=tk.TOP, fill=tk.BOTH, expand=True)
        sys.stdout = TextRedirector(self.text)

    def print_stdout(self):
        for i in range(1, 10):
            for j in range(1, i + 1):
                print('%s*%s=%s' % (i, j, i * j), end=' ')
            print()



class TextRedirector(object):
    def __init__(self, widget, tag='stdout'):
        self.widget = widget
        self.tag = tag

    def write(self, str):
        self.widget.configure(state='normal')
        self.widget.insert(tk.END, str, (self.tag,))  # (self.tag,) 是设置配置
        self.widget.configure(state='disabled')


if __name__ == '__main__':
    app = ExampleApp()
    app.mainloop()

我目前的代码，改了很久，但是还是在gui打印不出来乘法表

import sys
import tkinter as tk

from tkinter import Tk

from tkinter import messagebox

from tkinter.messagebox import *

import random

import datetime

import time

class TextRedirector(object):
    def __init__(tk, widget, tag='stdout'):
        tk.widget = widget
        tk.tag = tag

    def write(tk, str):
        tk.widget.configure(state='normal')
        tk.widget.insert(tk.END, str, (self.tag,))  # (self.tag,) 是设置配置
        tk.widget.configure(state='disabled')

window = tk.Tk()

score = 0

count = 1

a = random.randint(1, 9)

b = random.randint(1, 9)


mul01 = tk.StringVar()

mul01.set(str(a))

mul02 = tk.StringVar()

mul02.set(str(b))

count_title = tk.StringVar()

count_title.set('第1道题')

score_lab = tk.StringVar()

score_lab.set('0')

answer_lab = tk.StringVar()

gameove = tk.StringVar()

t=tk.StringVar()

t1=tk.StringVar()

time_solve = tk.DoubleVar()

gameove.set("共测试10道乘法，每题10分，总分100分")

window.title("乘法口诀测试")

window.geometry('600x500')

window["background"] = "LightCyan"

title01 = tk.Label(window,

                   textvariable=gameove,

                   font=('华文行楷', 15),

                   bg='SpringGreen')

title01.place(x=120, y=30)

label01 = tk.Label(window,

                   textvariable=count_title,

                   font=('华文行楷', 20),

                   bg='hotpink')  # 第N道题

label01.place(x=100, y=100)

title02 = tk.Label(window, text="请输入答案：", font=('华文行楷', 20),

                   bg='hotpink')

title02.place(x=80, y=250)

title03 = tk.Label(window,

                   textvariable=score_lab,

                   font=('华文行楷', 28),

                   bg='hotpink')  # 分数lab

title03.place(x=340, y=380)

title04 = tk.Label(window, text="得分：", font=('华文行楷', 28), bg='hotpink')  # 得分lab

title04.place(x=190, y=380)

title05 = tk.Label(window, textvariable=answer_lab, font=('华文行楷', 28), bg='hotpink')  # 得分lab

title05.place(x=220, y=450)

entry01 = tk.Entry(window, textvariable=0, width=10, font=('华文行楷', 20), show=None)  # 文本输入框

entry01.place(x=300, y=250)

label02 = tk.Label(window, textvariable=mul01, font=('华文行楷', 28),

                   bg='hotpink')  # 被乘数lab

label02.place(x=180, y=175)

label03 = tk.Label(window, textvariable=mul02, font=('华文行楷', 28),

                   bg='hotpink')  # 乘数lab

label03.place(x=340, y=175)

imgLabel = tk.Label(window, text='X', font=('黑体', 28),

                    bg='hotpink')  # 乘号标签

imgLabel.place(x=263, y=170)

def multitable():
    for i in range(1, 10):
        for j in range(1, i + 1):
            print('%s*%s=%s' % (i, j, i * j), end=' ')
        print()

# 当点击右上角退出时，执行的程序
def on_closing():
    if messagebox.askokcancel("Quit", "Do you want to quit?"):
        sys.exit()

def surecallback():
    global a, b, count,startTime,endTime,time_solve

    if count <= 10:

        product = a * b

        result = int(entry01.get())


        if result == product:

            global score

            score = score + 10

            score_lab.set(str(score))

            answer_lab.set("答对了")

        else:

            answer_lab.set("答错了")

        endTime = time.time()

        time_solve = endTime - startTime

        entry01.delete(0, tk.END)

        a = random.randint(1, 9)

        b = random.randint(1, 9)

        mul01.set(str(a))

        mul02.set(str(b))

        count = count + 1

        c = '第' + str(count) + '道题'

        count_title.set(c)

    else:
        title01.destroy()
        title02.destroy()
        entry01.destroy()
        title03.destroy()
        title04.destroy()
        title05.destroy()
        label01.destroy()
        label02.destroy()
        label03.destroy()
        imgLabel.destroy()
        button01.destroy()
        gameove.set("测试结束")
        title06 = tk.Label(window,
                           textvariable=gameove, font=('华文行楷', 40),
                           bg='SpringGreen')

        title06.place(x=220, y=30)
        t.set('进行本次乘法测试花费的时间为:%s' % (time_solve))
        t1.set('进行每次测试花费的平均时间为:%s' %(time_solve/10))
        title07 = tk.Label(window,
                           textvariable=t, font=('华文行楷', 15),
                           bg='SpringGreen')
        title07.place(x=30, y=140)
        title08 = tk.Label(window,
                           textvariable=t1, font=('华文行楷', 15),
                           bg='SpringGreen')
        title08.place(x=30, y=200)

        toolBar = tk.Frame()
        toolBar.pack(side=tk.TOP, fill=tk.X)
        button1 = tk.Button( text='打印乘法表', command=multitable)
        button1.pack(in_=toolBar, side=tk.BOTTOM)
        text = tk.Text( wrap='word')
        text.pack(side=tk.TOP, fill=tk.BOTH, expand=True)
        stdout = TextRedirector(text)

        button03 = tk.Button(text='退出测试',

                             font=('华文行楷', 20),

                             width=14,

                             height=1,

                             command=on_closing)

        button03.place(x=230, y=370)

        window.mainloop()


button01 = tk.Button(text='确认',

                     font=('华文行楷', 20),

                     width=8,

                     height=1,

                     command=surecallback)

button01.place(x=230, y=310)
startTime = time.time()
print(startTime)
window.mainloop()

Answer 1

你引的例子用的是输出重定向方法，必须要自定义一个write的类方法，把print的内容打印到sys.stdout里。
除非不要用print，直接更改text的内容：

import tkinter as tk

def print_stdout():
    text.configure(state='normal')
    for i in range(1, 10):
        for j in range(1, i + 1):
            text.insert(tk.END, '%s*%s=%s ' % (i, j, i * j))
        text.insert(tk.END, "\n")
    text.configure(state='disabled')

window = tk.Tk()
toolBar = tk.Frame(window)
toolBar.pack(side=tk.TOP,fill=tk.X)
button1 = tk.Button(window, text='打印乘法表', command=print_stdout)
button1.pack(in_=toolBar, side=tk.BOTTOM)
text = tk.Text(window, wrap='word')
text.pack(side=tk.TOP, fill=tk.BOTH, expand=True)
window.mainloop()