通过循环创建元素 Tkinter [英] Creating elements by loop Tkinter

问题描述

我正在寻找一种在 Tkinter 中动态创建元素的方法.例如，假设用户输入 5，我想要一个循环来创建 5 个单选按钮和旁边的条目.

I'm looking for a way to create elements dynamically in Tkinter. For example, say the user enters 5, I'd like a loop to create 5 radio buttons and entries next to them.

推荐答案

这是一个让您入门的简单示例:

Here's a simple example to get you started:

import Tkinter as tk

class ButtonBlock(object):
    def __init__(self, master):
        self.master = master
        self.button = []
        self.button_val = tk.IntVar()
        entry = tk.Entry()
        entry.grid(row=0, column=0)
        entry.bind('<Return>', self.onEnter)
    def onEnter(self, event):
        entry = event.widget
        num = int(entry.get())
        for button in self.button:
            button.destroy()
        for i in range(1, num+1):
            self.button.append(tk.Radiobutton(
                self.master, text=str(i), variable=self.button_val, value=i,
                command=self.onSelect))
            self.button[-1].grid(sticky='WENS', row=i, column=0, padx=1, pady=1)
    def onSelect(self):
        print(self.button_val.get())

if __name__ == '__main__':
    root = tk.Tk()
    ButtonBlock(root)
    root.mainloop()

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