import tkinter as tk
from tkinter import messagebox
 
#設(shè)置窗口居中
def window_info():
 ws = window.winfo_screenwidth()
 hs = window.winfo_screenheight()
 x = (ws / 2) - 200
 y = (hs / 2) - 200
 print("%d,%d" % (ws, hs))
 return x,y
 
#設(shè)置登陸窗口屬性
window = tk.Tk()
window.title('歡迎使用停車(chē)場(chǎng)收費(fèi)系統(tǒng)')
a,b=window_info()
window.geometry("450x300+%d+%d"%(a,b))
 
#登陸界面的信息
tk.Label(window,text="停車(chē)場(chǎng)收費(fèi)系統(tǒng)",font=("宋體",32)).place(x=80,y=50)
tk.Label(window,text="賬號(hào)：").place(x=120,y=150)
tk.Label(window,text="密碼：").place(x=120,y=190)
#顯示輸入框
var_usr_name = tk.StringVar()
#顯示默認(rèn)賬號(hào)
var_usr_name.set('1400370101')
entry_usr_name=tk.Entry(window,textvariable=var_usr_name)
entry_usr_name.place(x=190,y=150)
var_usr_pwd = tk.StringVar()
#設(shè)置輸入密碼后顯示*號(hào)
entry_usr_pwd = tk.Entry(window,textvariable=var_usr_pwd,show='*')
entry_usr_pwd.place(x=190,y=190)
 
#登陸函數(shù)
def usr_login():
 #獲取輸入的賬號(hào)密碼
 usr_name = var_usr_name.get()
 usr_pwd = var_usr_pwd.get()
 #獲取存儲(chǔ)的賬戶(hù)信息，此處使用的是數(shù)據(jù)庫(kù)，調(diào)用數(shù)據(jù)庫(kù)查詢(xún)函數(shù)，也可以使用其他方式，如文件等
 dicts = SQL.load('login')
 print(dicts)
 bool = False
 for row in dicts:
 print(row.get("name"))
 if usr_name == row["name"]:
  bool = True
  pwd = row["password"]
  print(row)
 if bool == True:
 if usr_pwd == pwd:
  tk.messagebox.showinfo(title='Welcome', message='How are you?' +usr_name)
  mainwindow()
 else:
  tk.messagebox.showerror(message='對(duì)不起，輸入錯(cuò)誤，請(qǐng)重試！')
 else:
 is_sign_up = tk.messagebox.askyesno('Welcome', '您還沒(méi)有注冊(cè)，是否現(xiàn)在注冊(cè)呢？')
 if is_sign_up:
  usr_sign_up()
#注冊(cè)賬號(hào)
def usr_sign_up():
 def sign_to_Pyhon():
 np = new_pwd.get()
 npc = new_pwd_confirm.get()
 nn = new_name.get()
 
 dicts = SQL.load('login')
 print(dicts)
 bool = False
 for row in dicts:
  if nn == row["name"]:
  bool = True
  print(row)
 if np!=npc:
  tk.messagebox.showerror('對(duì)不起','兩次密碼輸入不一致！')
 elif bool:
  tk.messagebox.showerror(('對(duì)不起','此賬號(hào)已經(jīng)存在!'))
 else:
  try:
  SQL.insert_login(str(nn),str(np))
  tk.messagebox.showinfo('Welcome','您已經(jīng)注冊(cè)成功！')
  except:
  tk.messagebox.showerror(('注冊(cè)失敗!'))
  window_sign_up.destroy()
 #創(chuàng)建top窗口作為注冊(cè)窗口
 window_sign_up = tk.Toplevel(window)
 window_sign_up.geometry('350x200')
 window_sign_up.title('注冊(cè)')
 
 new_name = tk.StringVar()
 new_name.set('1400370115')
 tk.Label(window_sign_up,text='賬號(hào):').place(x=80,y=10)
 entry_new_name = tk.Entry(window_sign_up,textvariable=new_name)
 entry_new_name.place(x=150,y=10)
 
 new_pwd = tk.StringVar()
 tk.Label(window_sign_up, text='密碼:').place(x=80, y=50)
 entry_usr_pwd = tk.Entry(window_sign_up,textvariable=new_pwd,show='*')
 entry_usr_pwd.place(x=150, y=50)
 
 new_pwd_confirm = tk.StringVar()
 tk.Label(window_sign_up,text='再次輸入:').place(x=80,y=90)
 entry_usr_pwd_again = tk.Entry(window_sign_up,textvariable=new_pwd_confirm,show='*')
 entry_usr_pwd_again.place(x=150, y=90)
 
 btn_again_sign_up = tk.Button(window_sign_up,text='注冊(cè)',command=sign_to_Pyhon)
 btn_again_sign_up.place(x=160,y=130)
 
#登陸和注冊(cè)按鈕
btn_login = tk.Button(window,text="登陸",command=usr_login)
btn_login.place(x=170,y=230)
btn_sign_up = tk.Button(window,text="注冊(cè)",command=usr_sign_up)
btn_sign_up.place(x=270,y=230)
 
window.mainloop()