Question

def createDice():

    mainMenu.destroy()

    global createMenu
    createMenu = tkinter.Tk()
    createMenu.title("Dice Maker.")

    global lblName
    global entName
    global lblPassword
    global entPassword
    global lblOutcomes
    global entOut1
    global entOut2
    global entOut3
    global entOut4
    global entOut5
    global entOut6
    global btnConfirm

    lblName = tkinter.Label(createMenu, text="What would you like to call your dice? Dont put .(file type) at the end.")
    entName = tkinter.Entry(createMenu)
    lblPassword = tkinter.Label(createMenu, text="If you would like a password in order\n to use your dice, enter one.")
    entPassword = tkinter.Entry(createMenu)
    lblOutcomes = tkinter.Label(createMenu, text="Enter the outcomes for the dice, the bottom one is outcome 6.")

    entOut1 = tkinter.Entry(createMenu)
    entOut2 = tkinter.Entry(createMenu)
    entOut3 = tkinter.Entry(createMenu)
    entOut4 = tkinter.Entry(createMenu)
    entOut5 = tkinter.Entry(createMenu)
    entOut6 = tkinter.Entry(createMenu)
    btnConfirm = tkinter.Button(createMenu, text="Confirm", command=createDice2)

    lblName.pack()
    entName.pack()
    lblPassword.pack()
    entPassword.pack()
    lblOutcomes.pack()
    entOut1.pack()
    entOut2.pack()
    entOut3.pack()
    entOut4.pack()
    entOut5.pack()
    entOut6.pack()
    btnConfirm.pack()

def createDice2():

    global name
    global nameTxt
    global password
    global out1
    global out2
    global out3
    global out4
    global out5
    global out6

    name = entName.get()
    nameTxt = name + ".txt"
    password = entPassword.get()
    out1u = entOut1.get()
    out2u = entOut2.get()
    out3u = entOut3.get()
    out4u = entOut4.get()
    out5u = entOut5.get()
    out6u = entOut6.get()

    out1 = out1u + "\n"
    out2 = out2u + "\n"
    out3 = out3u + "\n"
    out4 = out4u + "\n"
    out5 = out5u + "\n"
    out6 = out6u + "\n"

    f = open(nameTxt, 'w')
    f.write(out1)
    f.write(out2)
    f.write(out3)
    f.write(out4)
    f.write(out5)
    f.write(out6)
    f.write(password)
    f.close()

    createMenu.destroy()
    restartpls = tkinter.Tk()
    restartpls.title("Restart this program")

    lblrestart = tkinter.Label(restartpls, text="Please restart this program, this is needed so that\n the program can see that you have created\n a new dice.")
    lblrestart.pack()

    restartpls.mainloop()
    sys.exit()

def loadDice():
 #see the other .txt files around the python file and make a button for each of them.
 #other code i will do.

def mainMenu():
    global mainMenu
    mainMenu = tkinter.Tk()
    mainMenu.title("Menu")

    btnCreateDice = tkinter.Button(mainMenu, text="Create Dice", command=createDice)
    btnLoadDice = tkinter.Button(mainMenu, text="Load Dice")
    btnExit = tkinter.Button(mainMenu, text="Exit", command=exit)

    btnCreateDice.pack()
    btnLoadDice.pack()
    btnExit.pack()

    mainMenu.mainloop()
mainMenu()

当您运行此代码时，它会要求您创建骰子，退出或加载骰子。我编写了创建骰子和退出按钮程序。我无法弄清楚如何让python为与它相同的文件夹中的每个.txt文件创建一个按钮并将其放在按钮中。然后当按下一个特定按钮时，它会将前6行代码放入骰子的输出，将第7行放入密码。

如何让python为与其相同的文件夹中的每个.txt文件创建一个按钮并将其放在按钮中

我将此代码放在def loadDice（）：底部。

Answer 1

这是一个基本的例子，说明如何使用全局变量并且不保留按钮对象（因为它们仅在本地定义）。我已将按钮放在一个框架中，这样您就可以在加载骰子按钮之后但在退出按钮之前打包按钮。为了简单起见，我已将其设为全局，因为mainMenu已经是全局的，但我还提供了一个注释掉的示例，说明如何使用functools.partial将参数传递给按钮命令。

import glob
import functools
import os

... the rest of your code

def loadDice():
    for dice_file_name in glob.glob('*.txt'):
        print(dice_file_name)
        btnDie = tkinter.Button(frameCustomDice, text=os.path.splitext(dice_file_name)[0])
        btnDie.pack()
    mainMenu.update()

def mainMenu():
    global mainMenu
    mainMenu = tkinter.Tk()
    mainMenu.title("Menu")

    global frameCustomDice
    frameCustomDice = tkinter.Frame(height=2, bd=1, relief=tkinter.SUNKEN)

    btnCreateDice = tkinter.Button(mainMenu, text="Create Dice", command=createDice)
    btnLoadDice = tkinter.Button(mainMenu, text="Load Dice", command=loadDice)
    # btnLoadDice = tkinter.Button(mainMenu, text="Load Dice", command=functools.partial(loadDice, mainMenu, frameCustomDice))
    btnExit = tkinter.Button(mainMenu, text="Exit", command=exit)

    btnCreateDice.pack()
    btnLoadDice.pack()
    frameCustomDice.pack()
    btnExit.pack()

    mainMenu.mainloop()

mainMenu()

从这一点来看，需要考虑一些要点：

尽可能避免使用global变量，方法是将必要的变量作为参数传递给命令。
使用functools.partial为loadDice中创建的每个按钮提供自定义参数化命令，方法是将文件名传递给某个函数（比如rollDice），或者解析概率在loadDice中文件的两侧，并将这些概率作为参数传递给rollDice。
跟踪加载的按钮，当前如果您运行loadButton两次，它将再次加载按钮。我想你可以先从框架中删除所有按钮，或保存一些关于加载按钮的数据，并在加载新按钮之前检查一下。

按下时按钮从.txt文件中读取文本并显示它（Python）

1 个答案: