python - 带有 TK 的图形用户界面 - 按钮位置和操作

Question

我开始在 python 中使用 TK 为我的程序构建图形界面。我无法解决有关 (1) 按钮在窗口中的位置和 (2) 在函数内使用单选按钮的值的 2 个问题。

这是我当前的代码:

root = tk.Tk()
root.title("START")
root.geometry("500x200+500+200")

v = tk.IntVar()
v.set(0)  # initializing the choice

my_choise = [
("Basic",1),
("Advanced",2),
('Extreme',3)
]

def ShowChoice():
    print(v.get())

tk.Label(root, 
     text="""Choose your configuration:""",
     justify = tk.LEFT,
     padx = 20).pack()

val = 0
for val, choise in enumerate(my_choise):
    tk.Radiobutton(root,text=choise,padx = 20,variable=v,command=ShowChoice,value=val).pack(anchor=tk.W)


def star_program(value):
    os.system("ifconfig")

def open_comments_file():
    os.system("gedit /home/user/Desktop/comments.txt")

def open_links_file():
    os.system("gedit /home/user/Desktop/links.txt")

frame = tk.Frame(root)
frame.pack()

open_file_c = tk.Button(frame, 
               text="Comments",
               command=open_comments_file)

open_file_f = tk.Button(frame, 
               text="Links",
               command=open_links_file)

button = tk.Button(frame, 
               text="Start",
               command=star_program(v.get()))

button.pack(side=tk.LEFT)
open_file_f.pack(side=tk.LEFT)
open_file_c.pack(side=tk.LEFT)

slogan = tk.Button(frame,
               text="Cancel",
               command=quit)
slogan.pack(side=tk.LEFT)

root.mainloop()

我希望按钮“链接”和“评论”位于单选按钮下方，一个在另一个下方。现在，所有按钮都排成一行，但我想在窗口底部显示“开始”和“取消”。

然后我尝试在 star_program 函数中使用单选按钮(选择)的值。这没用。我的想法是，根据单选按钮中选择的选项，当我单击“开始”按钮时执行不同的操作:

    def star_program(value):
        if value == 0:
            os.system("ifconfig")
        else:
            print "Goodbye"

此外，关于“开始”按钮，我有一个奇怪的行为。如果我不单击“开始”，程序也会运行“ifconfig”命令。如果我点击“开始”，它不会执行任何操作。

有什么建议吗？谢谢!!!

Answer 1

我假设这更像是您所追求的:

root = tk.Tk()
root.title("START")
root.geometry("500x200+500+200")

v = tk.IntVar()
v.set(0)  # initializing the choice

my_choise = [
("Basic",1),
("Advanced",2),
('Extreme',3)
]

def ShowChoice():
    print(v.get())

tk.Label(root, 
     text="""Choose your configuration:""",
     justify = tk.LEFT,
     padx = 20).grid(column=1, row=0, sticky="nesw") # use grid instead of pack

root.grid_columnconfigure(1, weight=1)

val = 0
for val, choise in enumerate(my_choise):
    tk.Radiobutton(root,text=choise,padx = 20,variable=v,command=ShowChoice,value=val).grid(column=1, row=val+1, sticky="nw")


def star_program(value):
    os.system("ifconfig")

def open_comments_file():
    os.system("gedit /home/user/Desktop/comments.txt")

def open_links_file():
    os.system("gedit /home/user/Desktop/links.txt")

frame = tk.Frame(root)
frame.grid(column=1, row=4, sticky="nesw")

open_file_c = tk.Button(frame, 
               text="Comments",
               command=open_comments_file)

open_file_f = tk.Button(frame, 
               text="Links",
               command=open_links_file)

button = tk.Button(frame, 
               text="Start",
               command=lambda: star_program(v.get()))
# use lambda to create an anonymous function to be called when button pushed,
needed for functions where arguments are required

button.grid(column=2, row=3, sticky="nesw")
open_file_f.grid(column=1, row=1, sticky="nesw")
open_file_c.grid(column=1, row=2, sticky="nesw")

slogan = tk.Button(frame,
               text="Cancel",
               command=quit)
slogan.grid(column=4, row=3, sticky="nesw")

root.mainloop()