判断问题,Python交流,技术交流,鱼C论坛

qin_yin 发表于 2020-12-5 20:20:42

判断问题

import tkinter as tk
import tkinter.messagebox as msg
import pickle

class Login:
urse_data = {}
try:
   with open('D:\\python库\\urse_data.pkl', 'rb') as data:
         data = pickle.load(data)
         urse_data = data
except:
   with open('D:\\python库\\urse_data.pkl', 'wb') as data:
         pickle.dump(urse_data,data)

def __init__(self,root):
   self.main_window = root
   self.main_window.title('welcoe to Login window')
   self.main_window.geometry('450x300')

   self.main_frame = tk.Frame(self.main_window)
   self.main_frame.pack(padx=10,pady=10)
   self.img = tk.PhotoImage(file='C:\\Users\\Admin\\Desktop\welcome.gif')
   imglabel = tk.Label(self.main_frame, image=self.img)
   imglabel.grid(row=1, column=2)

   tk.Button(text='log on',command=self.log_on, width=6, height=2).place(x=100,y=230) # 登录组件
   tk.Button(text='register', command=self.register,width=6, height=2).place(x=260, y=230) # 注册组件

   tk.Label(self.main_window, text='ID',font=('微软雅黑', 13)).place(x=80, y=140)# ID 标签
   tk.Label(self.main_window,text='Password', font=('微软雅黑', 13)).place(x=80, y=170) # 密码标签

   self.id_ = tk.Entry(self.main_window)# id 输入框
   self.password = tk.Entry(self.main_window)# 密码输入框
   self.id_.place(x=170, y=140)
   self.password.place(x=170, y=170)

def log_on(self):
   if self.id_.get() == '':
         error_label = tk.Label(self.main_window, text='请输入你的账号后登录', font=('微软雅黑字体', 10), fg='red')
   else:
         if self.password.get() == '':
            error_label = tk.Label(self.main_window, text='请输入你的密码后登录', font=('微软雅黑字体', 10), fg='red')
            error_label.place(x=170, y=190)
         else:
            try:
               if self.password.get() == self.urse_data:
                     msg.showwarning(title='提示', message='登录成功')
               else:
                     error_label = tk.Label(self.main_window, text='账号或密码错误', font=('微软雅黑字体', 10), fg='red')

            except KeyError:
               error_label = tk.Label(self.main_window, text='账号或密码错误', font=('微软雅黑字体', 10),fg='red')

            finally:
               error_label.place(x=170, y=190)
   error_label.place(x=170, y=190)

def register(self):
   self.top_window =tk.Toplevel()
   self.top_window.title('欢迎注册')
   self.top_window.geometry('560x300')
   global img
   img = tk.PhotoImage(file=r'C:\Users\Admin\Desktop\timg.gif')
   tk.Label(self.top_window, image=img).pack(padx=80, pady=10, anchor='w') # 图片标签
   tk.Label(self.top_window, text='New ID', font=('微软雅黑', 13)).place(x=20, y=125)# 新 id 标签
   tk.Label(self.top_window, text='New Password', font=('微软雅黑', 13)).place(x=20, y=155)# 新密码标签
   tk.Label(self.top_window, text='Confirm pass', font=('微软雅黑', 13)).place(x=20,y=185)

   self.new_id = tk.Entry(self.top_window,validate='key',validatecommand=self.cheking)# id 输入框
   self.new_id.place(x=150, y=125)

   self.new_password = tk.Entry(self.top_window) # 密码输入框
   self.new_password.place(x=150 , y=155)

   self.confirm_password = tk.Entry(self.top_window)# 确认密码输入框
   self.confirm_password.place(x=150, y=187)

   self.msg_value = tk.StringVar() # 提示注册格式合法性变量
   tk.Label(self.top_window, textvariable=self.msg_value).place(x=300, y=125)# 提示标签

def cheking(self): # 验证函数
   number = '1234567890'
   letter = 'QWERTYUIOPASDFGHJKLZXCVBNMqwertyuiopasdfghjklzxcvbnm'
   symbol = "*-+.?/.>,<;':\"[]{}|\+=_-)(*&^%$#@!~`"
   self.msg_value.set('')
   for i in self.new_id.get():
         if i in letter or i in symbol or i in number:
            continue
         else:
            self.msg_value.set('ID不合法，ID只能含有字母数组英文字符')

   return True

root = tk.Tk()
longin = Login(root)

root.mainloop()

在验证用户输入格式是否合法的时候有个小问题：
当第一个字符为汉字或者其他不合法的字符,不会进行判断，只有第二次输入字符的时候才给予出提示

逃兵发表于 2020-12-6 11:08:00

import tkinter as tk
import tkinter.messagebox as msg
import pickle

class Login:
urse_data = {}

def __init__(self,root):
   self.main_window = root
   self.main_window.title('welcoe to Login window')
   self.main_window.geometry('450x300')

   self.main_frame = tk.Frame(self.main_window)
   self.main_frame.pack(padx=10,pady=10)
   self.img = tk.PhotoImage(file='C:\\Users\\Admin\\Desktop\welcome.gif')
   imglabel = tk.Label(self.main_frame, image=self.img)
   imglabel.grid(row=1, column=2)

   tk.Button(text='log on',command=self.log_on, width=6, height=2).place(x=100,y=230) # 登录组件
   tk.Button(text='register', command=self.register,width=6, height=2).place(x=260, y=230) # 注册组件

   tk.Label(self.main_window, text='ID',font=('微软雅黑', 13)).place(x=80, y=140)# ID 标签
   tk.Label(self.main_window,text='Password', font=('微软雅黑', 13)).place(x=80, y=170) # 密码标签

   self.id_ = tk.Entry(self.main_window)# id 输入框
   self.password = tk.Entry(self.main_window)# 密码输入框
   self.id_.place(x=170, y=140)
   self.password.place(x=170, y=170)

def log_on(self):
   if self.id_.get() == '':
         error_label = tk.Label(self.main_window, text='请输入你的账号后登录', font=('微软雅黑字体', 10), fg='red')
   else:
         if self.password.get() == '':
            error_label = tk.Label(self.main_window, text='请输入你的密码后登录', font=('微软雅黑字体', 10), fg='red')
            error_label.place(x=170, y=190)
         else:
            try:
               if self.password.get() == self.urse_data:
                     msg.showwarning(title='提示', message='登录成功')
               else:
                     error_label = tk.Label(self.main_window, text='账号或密码错误', font=('微软雅黑字体', 10), fg='red')

            except KeyError:
               error_label = tk.Label(self.main_window, text='账号或密码错误', font=('微软雅黑字体', 10),fg='red')

            finally:
               error_label.place(x=170, y=190)
   error_label.place(x=170, y=190)

def register(self):
   self.top_window =tk.Toplevel()
   self.top_window.title('欢迎注册')
   self.top_window.geometry('560x300')
   global img
   img = tk.PhotoImage(file=r'C:\Users\Admin\Desktop\timg.gif')
   tk.Label(self.top_window, image=img).pack(padx=80, pady=10, anchor='w') # 图片标签
   tk.Label(self.top_window, text='New ID', font=('微软雅黑', 13)).place(x=20, y=125)# 新 id 标签
   tk.Label(self.top_window, text='New Password', font=('微软雅黑', 13)).place(x=20, y=155)# 新密码标签
   tk.Label(self.top_window, text='Confirm pass', font=('微软雅黑', 13)).place(x=20,y=185)

   self.new_id = tk.Entry(self.top_window,validate='key',validatecommand=self.cheking)# id 输入框
   self.new_id.place(x=150, y=125)

   self.new_password = tk.Entry(self.top_window) # 密码输入框
   self.new_password.place(x=150 , y=155)

   self.confirm_password = tk.Entry(self.top_window)# 确认密码输入框
   self.confirm_password.place(x=150, y=187)

   self.msg_value = tk.StringVar() # 提示注册格式合法性变量
   tk.Label(self.top_window, textvariable=self.msg_value).place(x=300, y=125)# 提示标签

def cheking(self): # 验证函数
   number = '1234567890'
   letter = 'QWERTYUIOPASDFGHJKLZXCVBNMqwertyuiopasdfghjklzxcvbnm'
   symbol = "*-+.?/.>,<;':\"[]{}|\+=_-)(*&^%$#@!~`"
   sumnls = number+letter+sumnls
   self.msg_value.set('')
   for i in self.new_id.get():
         if i not in sumnls:
            self.msg_value.set('ID不合法，ID只能含有字母数组英文字符')
         else:
            continue

   return True

root = tk.Tk()
longin = Login(root)

root.mainloop()

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