Python：如何在課堂關閉tkinter窗口？

Question

我正在試着做一個聊天室。現在我正在登錄屏幕上工作。

輸入用戶名和密碼後，如果是正確的，那麼應該關閉登錄屏幕並打開另一個屏幕（應該在另一個類中運行）。如果密碼或用戶名錯誤，則應該直接關閉該窗口。但我不知道該怎麼做。

我試着在類中寫一個Quit函數，然後在login函數中，如果返回False，應該調用Quit函數。問題是我不知道我是否可以從外面調用這個功能。

如果我打電話Login.Quit()類外，它會說

TypeError: unbound method Quit() must be called with Login instance as first argument (got nothing instead) 

我也想知道如何運行到下一個階級和打開另一扇窗。

這實際上是我的家庭作業，但我真的需要幫助。請幫助我，謝謝！

from Tkinter import * 
import socket 

########HelperFunction######## 
def chunkstring (block): #Use to make the block into chunks and count the sum of ASCII value of chunks 
    M = [] 
    for i in range(0, 512, 32): 
     L = str((block[0 + i : 32 + i])) 
     sum = 0 
     for r in range(len(L)): 
      sum = sum + ord(L[r]) 
     M.append(sum) 
    return M 

def leftrotate(x, c): 
    return (x << c) & 0xFFFFFFFF | (x >> (32 - c) & 0x7FFFFFFF >> (32 - c)) 



########Connection######## 
def StartConnection (IPAddress, PortNumber): #Use to set up the connection between computers and servers 
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 
    s.connect((IPAddress, PortNumber)) 
    return s 

def login (s, username, password): #Login Function 
    print username 
    print password 
    s.send('LOGIN ' + username + '\n') 
    data = s.recv(512) 
    List = data.split(" ") #send the commend and get something back 

    CH = List[2] # pick up the CHALLENGE code 
    CH = CH[:-2] # delete the last two unnecessary code 
    PD = password 
    message = PD + CH # combine password and CHALLENGE together 
    block = message + "1" 

    block = block + "0" * (512 - len(message) - 3 - 1) # add '0' to block and remain the space for last three digits 

    numLen = len(str(len(message))) 

    if numLen == 2: #If the password is very long, we should consider the last digits may be affected 
     block = block + "0" + str(len(message)) 
    elif numLen == 3: 
     block = block + str(len(message)) 

    M = chunkstring(block) 

    ########## MD5 
    P = [7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22, 
     5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20, 
     4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23, 
     6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21] 

    K = [0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee, 
     0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501, 
     0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be, 
     0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821, 
     0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa, 
     0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8, 
     0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed, 
     0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a, 
     0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c, 
     0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70, 
     0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x04881d05, 
     0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665, 
     0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039, 
     0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1, 
     0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1, 
     0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391] 

    #Initialize variables 
    a0 = 0x67452301 
    b0 = 0xefcdab89 
    c0 = 0x98badcfe 
    d0 = 0x10325476 
    A = a0 
    B = b0 
    C = c0 
    D = d0 

    #Mainloop 
    for i in range(0, 64): 
     if i >= 0 and i <= 15: 
      F = (B & C) | ((~ B) & D) 
      F = F & 0xFFFFFFFF 
      g = i 

     elif i >= 16 and i <= 31: 
      F = (D & B) | ((~ D) & C) 
      F = F & 0xFFFFFFFF 
      g = (5 * i + 1) % 16 

     elif i >= 32 and i <= 47: 
      F = B^C^D 
      F = F & 0xFFFFFFFF 
      g = (3 * i + 5) % 16 

     elif i >= 48 and i <= 63: 
      F = C^(B | (~ D)) 
      F = F & 0xFFFFFFFF 
      g = (7 * i) % 16 

     dTemp = D 
     D = C 
     C = B 
     B = B + leftrotate((A + F + K[i] + M[g]), P[i]) 
     B = B & 0xFFFFFFFF 
     A = dTemp 

    #Add this chunk's hash to result so far: 
    a0 = (a0 + A) & 0xFFFFFFFF 
    b0 = (b0 + B) & 0xFFFFFFFF 
    c0 = (c0 + C) & 0xFFFFFFFF 
    d0 = (d0 + D) & 0xFFFFFFFF 
    result = str(a0) + str(b0) + str(c0) + str(d0) 

    s.send("LOGIN " + username + " " + result + "\n") #send messagedigest to server 
    reply = s.recv(512) 
    print reply 

    if "Successful" in reply: 
     return True 
    else: 
     Login.Quit() 
     return False 


########Interface######### 
class Login(Frame): 
    def __init__(self, master): 
     frame = Frame(master) 
     frame.pack() 
     First.geometry("250x250") 
     self.lab1 = Label(frame, text = "Username") 
     self.lab1.grid(row = 0, column = 125) 
     self.ent1 = Entry(frame) 
     self.ent1.grid(row = 1, column = 125) 

     self.lab2 = Label(frame, text = "Password") 
     self.lab2.grid(row = 2, column = 125) 
     self.ent2 = Entry(frame, show = "*") 
     self.ent2.grid(row = 3, column = 125) 

     self.button = Button(frame, text = "OK", command = self.Submit) 
     self.button.grid(row = 5, column = 125) 

    def Submit(self): 
     username = self.ent1.get() 
     password = self.ent2.get() 
     login(ss, username, password) 

    def Quit(self): 
     self.Login.quit() 

First = Tk() 
First.title("Login") 
Login(First) 
ss = StartConnection("86.36.34.215", 15112) 
First.mainloop() 

Answer 1

問題是，您必須從對象而不是類中調用「退出」。

問：你有沒有創建類「Login」的實例？

例如：

First = Tk() 
First.title("Login") 
myFrame = new Login(First) 
... 
First.mainloop() 

然後，您可以撥打myFrame.Quit()

在這裏尋找更多詳情：

Python unbound method

What is the difference between objects and classes in Python