无法点击tkinter上的按钮

Question

我是一个新的tkinter，我在python GUI的按钮上遇到了问题。我创建了按钮和它背后的函数，但我无法点击按钮。谁能告诉我我做错了什么？UI出现了，我可以看到按钮，但就是不能点击它。

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

还有一个错误。

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

Answer 2

非常小的错误。你把命令参数加成了一个字符串，而不是一个函数。

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

EDIT: 有一个小的错别字，在 initialdir 在openfiledogbox中的参数

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