代码忽略def start？

from tkinter import * import os creds = 'tempfile.txt' def start(): global rootE rootE = Tk() rootE.title('welcome') greeting = Label(rootE, text='What yould you like to do?' ) sign = Button(rootE, text='register', command=Signup) login = Button(rootE, text='log in', command=Login) sign.grid(row=1,column=0, stick=W) login.grid(row=2,column=0, stick=W) rootE.geometry('200x200') rootE.mainloop() def Signup(): # This is the signup definition, global pwordE global nameE global roots roots = Tk() # This creates the window, just a blank one. roots.title('Signup') # This renames the title of said window to 'signup' intruction = Label(roots, text='Please Enter new Credidentials\n') # This puts a label, so just a piece of text saying 'please enter blah' intruction.grid(row=0, column=0, sticky=E) # This just puts it in the window, on row 0, col 0. If you want to learn more look up a tkinter tutorial :) nameL = Label(roots, text='New Username: ') # This just does the same as above, instead with the text new username. pwordL = Label(roots, text='New Password: ') # ^^ nameL.grid(row=1, column=0, sticky=W) # Same thing as the instruction var just on different rows. :) Tkinter is like that. pwordL.grid(row=2, column=0, sticky=W) # ^^ nameE = Entry(roots) # This now puts a text box waiting for input. pwordE = Entry(roots, show='*') # Same as above, yet 'show="*"' What this does is replace the text with *, like a password box :D nameE.grid(row=1, column=1, sticky=W) pwordE.grid(row=2, column=1, sticky=W) signupButton = Button(roots, text='Signup', command=FSSignup) # This creates the button with the text 'signup', when you click it, the command 'fssignup' will run. which is the def signupButton.grid(columnspan=2, sticky=W) roots.mainloop() # This just makes the window keep open, we will destroy it soon def FSSignup(): with open(creds, 'w') as f: # Creates a document using the variable we made at the top. f.write(nameE.get()) # nameE is the variable we were storing the input to. Tkinter makes us use .get() to get the actual string. f.write('\n') # Splits the line so both variables are on different lines. f.write(pwordE.get()) # Same as nameE just with pword var f.close() # Closes the file roots.destroy() # This will destroy the signup window. :) Login() def Login(): global pwordEL global nameEL global rootA rootA = Tk() # This now makes a new window. rootA.title('Login') # This makes the window title 'login' intruction = Label(rootA, text='Please Login\n') # More labels to tell us what they do intruction.grid(sticky=E) # Blahdy Blah nameL = Label(rootA, text='Username: ') # More labels pwordL = Label(rootA, text='Password: ') # ^ nameL.grid(row=1, sticky=W) pwordL.grid(row=2, sticky=W) nameEL = Entry(rootA) # The entry input pwordEL = Entry(rootA, show='*') nameEL.grid(row=1, column=1) pwordEL.grid(row=2, column=1) loginB = Button(rootA, text='Login', command=CheckLogin) # This makes the login button, which will go to the CheckLogin def. loginB.grid(columnspan=2, sticky=W) rmuser = Button(rootA, text='Delete User', fg='red', command=DelUser) # This makes the deluser button. blah go to the deluser def. rmuser.grid(columnspan=2, sticky=W) rootA.mainloop() def CheckLogin(): global rootD with open(creds) as f: data = f.readlines() # This takes the entire document we put the info into and puts it into the data variable uname = data[0].rstrip() # Data[0], 0 is the first line, 1 is the second and so on. pword = data[1].rstrip() # Using .rstrip() will remove the \n (new line) word from before when we input it if nameEL.get() == uname and pwordEL.get() == pword: # Checks to see if you entered the correct data. rootD = Tk() # Opens new window rootD.title(':D') rootD.geometry('200x200') # Makes the window a certain size menu = Label(rootD, text='Welcome to the menu, please choose an option:') Csubject = Button(rootD, text='choose subject', command=choose_subject) menu.grid(sticky=W ) Csubject.grid(row=2,column=0, sticky=W) rootA.destroy() rootD.mainloop() else: r = Tk() r.title(':(') r.geometry('200x200') rlbl = Label(r, text='\n[!] Invalid Login') rlbl.pack() r.mainloop() def choose_subject(): global History global Music global ComputerScience global rootB rootB = Tk() # This creates the window, just a blank one. rootB.title('Subject choice') # This renames the title of said window to 'signup' intruction = Label(rootB, text='Please choose a subject\n') # This puts a label, so just a piece of text saying 'please enter blah' intruction.grid(row=0, column=0, sticky=E,) # This just puts it in the window, on row 0, col 0. If you want to learn more look up a tkinter tutorial :) History = Button(rootB, text='History', command=difficulty) # This just does the same as above, instead with the text new username. Music = Button(rootB, text='Music', command=difficulty) # ^^ ComputerScience = Button(rootB, text='Computer Science', command=difficulty) History.grid(row=1, column=0, sticky=W) # Same thing as the instruction var just on different rows. :) Tkinter is like that. Music.grid(row=2, column=0, sticky=W) # ^^ ComputerScience.grid(row=3, column=0, sticky=W) # This now puts a text box waiting for input. # Same as above, yet 'show="*"' What this does is replace the text with *, like a password box :D roots.mainloop() # This just makes the window keep open, we will destroy it soon def difficulty(): global rootC global Easy global Medium global Hard rootC=Tk() rootC.title('difficulty level') instruction = Label(rootC, text='please choose a difficulty level\n') instruction.grid(row=0, cloumn=0, sticky=W) Easy = Button(rootC,text='Easy',command=Easy) Medium = Button(rootC, text='Medium', command=Medium) Hard = Button(rootC, text='Hard', Command=Hard) Easy.grid(row=1, column=0,sticky=W) Medium.grid(row=2, column=0, sticky=W) Hard.grid(row=3, column=0, sticky=W) root.mainloop() def DelUser(): os.remove(creds) # Removes the file rootA.destroy() # Destroys the login window Signup() # And goes back to the start! if os.path.isfile(creds): Login() else: # This if else statement checks to see if the file exists. If it does it will go to Login, if not it will go to Signup :) Signup() def History(): global rootE rootE = Tk() # This creates the window, just a blank one. rootE.title('History') # This renames the title of said window to 'signup' intruction = Label(rootE,text='Please Enter new Credidentials\n') # This puts a label, so just a piece of text saying 'please enter blah' intruction.grid(row=0, column=0,sticky=E) # This just puts it in the window, on row 0, col 0. If you want to learn more look up a tkinter tutorial :) nameL = Label(rootE, text='New Username: ') # This just does the same as above, instead with the text new username. pwordL = Label(rootE, text='New Password: ') # ^^ nameL.grid(row=1, column=0, sticky=W) # Same thing as the instruction var just on different rows. :) Tkinter is like that. pwordL.grid(row=2, column=0, sticky=W) # ^^ nameE = Entry(roots) # This now puts a text box waiting for input. pwordE = Entry(roots, show='*') # Same as above, yet 'show="*"' What this does is replace the text with *, like a password box :D nameE.grid(row=1, column=1, sticky=W) pwordE.grid(row=2, column=1, sticky=W) signupButton = Button(roots, text='Signup', command=FSSignup) # This creates the button with the text 'signup', when you click it, the command 'fssignup' will run. which is the def signupButton.grid(columnspan=2, sticky=W) def Easy(): global rootD rootD = Tk() # This creates the window, just a blank one. rootd.title('Easy') # This renames the title of said window to 'signup' intruction = Label(roots,text='You have chosen easy\n') # This puts a label, so just a piece of text saying 'please enter blah' intruction.grid(row=0, column=0,sticky=E)# This just puts it in the window, on row 0, col 0. If you want to learn more look up a tkinter tutorial :) instruction1 = Label(roots,text='what would you like to do a quiz on?') Historysbh= Label(roots, text='New Username: ') # This just does the same as above, instead with the text new username. pwordL = Label(roots, text='New Password: ') # ^^ nameL.grid(row=1, column=0,sticky=W) # Same thing as the instruction var just on different rows. :) Tkinter is like that. pwordL.grid(row=2, column=0, sticky=W) # ^^ nameE = Entry(roots) # This now puts a text box waiting for input. pwordE = Entry(roots,show='*') # Same as above, yet 'show="*"' What this does is replace the text with *, like a password box :D nameE.grid(row=1, column=1, sticky=W) pwordE.grid(row=2, column=1, sticky=W) signupButton = Button(roots, text='Signup',command=FSSignup) # This creates the button with the text 'signup', when you click it, the command 'fssignup' will run. which is the def signupButton.grid(columnspan=2, sticky=W)

2条回答

网友

1楼 · 编辑于 2024-06-16 10:19:25

尝试在所有def之后添加以下行。你知道吗

if __name__=='__main__':
    start()

此外，每次调用函数时，都需要后跟括号，例如：

sign = Button(rootE, text='register', command=Signup)
login = Button(rootE, text='log in', command=Login)

应该是：

sign = Button(rootE, text='register', command=Signup())
login = Button(rootE, text='log in', command=Login())

网友

2楼 · 编辑于 2024-06-16 10:19:25

你从不调用你的函数。。。如果你不打电话它就跑不了。你知道吗

如果您想在python文件中运行一些东西，请在顶层添加对函数的调用。您也可以使用此功能：

if __name__=='__main__':
    # call your start() function here

有关这方面的更多信息，请参见：What does if __name__ == "__main__": do?

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