我想在弹出窗口中打印输出？我应该如何接近？

Question

import tkinter as tk
import datetime 

def write_slogan():
    dt_object = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
    print("OrderName: %s"%dt_object)


master = tk.Tk()
tk.Button(master, 
          text='ORDER Number', 
          command=write_slogan).grid(row=3, 
                                    column=1, 
                                    sticky=tk.W, 
                                    pady=4)

tk.mainloop()

我应该如何在弹出窗口而不是终端上打印以上代码输出？

Answer 1

在tkinter窗口而不是终端中打印消息

如果只想在root窗口中打印消息，则可以在下面的代码中使用类似label的小部件：

import tkinter as tk

master = tk.Tk()

def write_slogan():
    info_message = "Your message"
    tk.Label(master, text=info_message).grid(row=2, column=1) 

btn = tk.Button(master, text='ORDER Number', command=write_slogan)
btn.grid(row=3, column=1, sticky=tk.W, pady=4)

master.mainloop()

在单独的弹出窗口中打印消息

您可以使用tkinter messagebox模块中的消息框弹出一些信息，并在其中显示您的信息消息。

import tkinter as tk
import tkinter.messagebox as tkmb

def write_slogan():
    info_message = "Your message"
    # info message box
    tkmb.showinfo("Output", info_message)

master = tk.Tk()

btn = tk.Button(master, text='ORDER Number', command=write_slogan)
btn.grid(row=3, column=1, sticky=tk.W, pady=4)

master.mainloop()

<< img src =“ https://image.soinside.com/eyJ1cmwiOiAiaHR0cHM6Ly9pLmltZ3VyLmNvbS9kZFhoTm11LnBuZyJ9” alt =“输出”>

创建顶级窗口作为弹出窗口

import tkinter as tk
import tkinter.messagebox as tkmb

def write_slogan():
    # toplevel window
    top_win = tk.Toplevel(master)
    top_win.title('Toplevel')
    info_message = "Your message"
    # info message box
    tk.Label(top_win, text=info_message).grid(row=0, column=0) 

master = tk.Tk()
master.title('Master')

btn = tk.Button(master, text='ORDER Number', command=write_slogan)
btn.grid(row=3, column=1, sticky=tk.W, pady=4)

master.mainloop()

Answer 2

因此，如果您有要打印的消息（水果）列表，则可以使用以下方法保存以前的结果并打印新的结果

import tkinter as tk

window = tk.Tk()

# list of fruits
fruits = ['Mango', 'Apple', 'Orange', 'Banana', ]

#action to be performed when button clicked
def clicked():
    for ind, fruit in enumerate(fruits):
        # print names in the tkinter window
        # create a label widget
        names_label = tk.Label(window)
        # give it a position using grid
        names_label.grid(row=int(ind)+1, column=0)
        # print the fruit name in the label
        names_label.config(text=fruit)

btn = tk.Button(window, text="Print fruits", command=clicked)
btn.grid(column=0, row=0, padx=30, pady=2)

window.mainloop()

输出：

单击Print fruits按钮以打印所有水果名称

这里要了解的重要事项是for循环用于创建与列表中元素数量相等的Label小部件，列表项index用于提供row和[C0 ]定位到这些标签小部件。

在顶级窗口中打印名称

column

输出：

<< img src =“ https://image.soinside.com/eyJ1cmwiOiAiaHR0cHM6Ly9pLmltZ3VyLmNvbS9ubmZOY09vLnBuZyJ9” alt =“顶级gui”>