| from tkinter import
import sqlite3
import tkinter.messagebox as messagebox
class LoginPage:
“””登录界面”””
def init(self, master):
self.root = master
self.root.geometry(‘400x200+600+400’)
self.root.title(‘项目资源管理平台Alpha0.1’)
self.conn = sqlite3.connect(‘data/login.db’)
self.username = StringVar()
self.password = StringVar()
self.page = Frame(self.root)
self.creatapage()
def creatapage(self):
“””界面布局”””
Label(self.page).grid(row=0)
Label(self.page, text=‘用户名:’).grid(row=1, stick=W, pady=10)
Entry(self.page, textvariable=self.username).grid(row=1, column=1, stick=E)
Label(self.page, text=‘密码:’).grid(row=2, stick=W, pady=10)
Entry(self.page, textvariable=self.password, show=‘‘).grid(row=2, stick=E, column=1)
Button(self.page, text=‘登录’, command=self.login).grid(row=3, stick=W, pady=10)
Button(self.page, text=‘注册账号’, command=self.register).grid(row=3, stick=E, column=1)
self.page.pack()
def login(self):
“””登录功能”””
curs = self.conn.cursor()
query = “select username, password, loginerror from loginuser where username=’%s’” % self.username.get()
curs.execute(query) # 返回一个迭代器
c = curs.fetchall() # 接收全部信息
if len(c) == 0:
messagebox.showerror(‘登录失败’, ‘账户不存在’)
else:
us, pw, lerror = c[0]
if lerror >= 3:
messagebox.showwarning(‘登录失败’, ‘账户已被锁定’)
elif us == self.username.get() and pw == self.password.get():
self.conn.close()
messagebox.showinfo(‘登录成功’, ‘欢迎：%s’ % us)
else:
messagebox.showwarning(‘登录失败’, ‘密码错误’)
def register(self):
“””注册功能跳转”””
self.conn.close()
self.page.destroy()
RegisterPage(self.root)
class RegisterPage:
“””注册界面”””
def init(self, master=None):
self.root = master
self.root.title(‘账号注册’)
self.root.geometry(‘400x250’)
self.conn = sqlite3.connect(‘data/login.db’)
self.username = StringVar()
self.password0 = StringVar() # 第一次输入密码
self.password1 = StringVar() # 第二次输入密码
self.email = StringVar()
self.page = Frame(self.root)
self.createpage()
def createpage(self):
“””界面布局”””
Label(self.page).grid(row=0)
Label(self.page, text=“账号:”).grid(row=1, stick=W, pady=10)
Entry(self.page, textvariable=self.username).grid(row=1, column=1, stick=E)
Label(self.page, text=“密码:”).grid(row=2, stick=W, pady=10)
Entry(self.page, textvariable=self.password0, show=‘‘).grid(row=2, column=1, stick=E)
Label(self.page, text=“再次输入:”).grid(row=3, stick=W, pady=10)
Entry(self.page, textvariable=self.password1, show=‘‘).grid(row=3, column=1, stick=E)
Label(self.page, text=“Email*:”).grid(row=4, stick=W, pady=10)
Entry(self.page, textvariable=self.email).grid(row=4, column=1, stick=E)
Button(self.page, text=“返回”, command=self.repage).grid(row=5, stick=W, pady=10)
Button(self.page, text=“注册”, command=self.register).grid(row=5, column=1, stick=E)
self.page.pack()
def repage(self):
“””返回登录界面”””
self.page.destroy()
self.conn.close()
LoginPage(self.root)
def register(self):
“””注册”””
if self.password0.get() != self.password1.get():
messagebox.showwarning(‘错误’, ‘密码核对错误’)
elif len(self.username.get()) == 0 or len(self.password0.get()) == 0 or len(self.email.get()) == 0:
messagebox.showerror(“错误”, “不能为空”)
else:
curs = self.conn.cursor()
query = ‘insert into loginuser values (?,?,?,?)’
val = [self.username.get(), self.password0.get(), self.email.get(), 0]
try:
curs.execute(query, val)
self.conn.commit()
self.conn.close()
messagebox.showinfo(“成功”, “注册成功，按确定返回登录界面”)
self.page.destroy()
LoginPage(self.root)
except sqlite3.IntegrityError:
messagebox.showerror(“注册失败”, “该账户已存在”)
if name == ‘main‘:
root = Tk()
LoginPage(root)
root.mainloop()
| 
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港控/mmm°
傷城~
灰太狼
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