无法单击 tkinter 上的按钮

Question

我是 tkinter 的新手，我在使用 python GUI 上的按钮时遇到问题。 我创建了按钮和它后面的 function 但我无法单击按钮。 有人可以告诉我我做错了什么吗？ 用户界面出现，我可以看到我无法点击的按钮。

import tkinter as tk

from tkinter import filedialog, Text

import os


#main
root = tk.Tk()

def addApp():
    filename = filedialog.askopenfilename(initialir= "/", title= "Select File",
                                          filetypes = (("executables", "*.exe"),
                                                        ("all files", "*.*")))

canvas = tk.Canvas(root, height=700, width=700, bg="#33F9FF")

canvas.pack()

frame = tk.Frame(root, bg="white")
frame.place(relwidth=0.8, relheight=0.8, relx = 0.1, rely = 0.1)

openFile = tk.Button(root, text = "Open File", padx = 10, pady = 5, fg="black",
                     bg="#33F9FF", command="addApp")

openFile.pack()

runApps = tk.Button(root, text = "Run Apps", padx = 10, pady = 5, fg="black",
                    bg="#33F9FF")

runApps.pack()

root.mainloop()

Answer 1

非常，小错误。 您将命令参数添加为字符串而不是 function

openFile = tk.Button(root, text = "Open File", padx = 10, pady = 5, fg="black",
                     bg="#33F9FF", command=addApp)

编辑：openfiledialogbox 中的initialdir参数有一个小错字

filename = filedialog.askopenfilename(initialdir= "/", title= "Select File",
                                          filetypes = (("executables", "*.exe"),
                                                        ("all files", "*.*")))

Answer 2

还有一个错误：

def addApp():
    filename = filedialog.askopenfilename(initialdir= '/', title= "Select File",
                                          filetypes = (("executables", "*.exe"),
                                                        ("all files", "*.*")))