import tkinter as tk
import random
def lol():
    name = entry_name.get()
    chao.config(text=f"Xin chào {name}")
def open_new_window(message):
    new_win = tk.Tk()
    new_win.title("Hi")
    new_win.geometry("300x200")
    label = tk.Label(new_win, text=message, font=("Arial", 20))
    label.pack(expand=True)
    new_win.mainloop()
def lb():
    root.config(bg="lightblue")
def red():
    root.config(bg="red")
#chat gpt help phan ngau nhien
def rd():
    cl=["red","orange","yellow","lime","green","blue","lavender","lightblue","black","white"]
    rd1 = random.choice(cl)
    root.config(bg=rd1)
def de():
    root.destroy()    
    open_new_window("lol")
root=tk.Tk()
root.title("Login")
root.geometry("600x800")
tk.Label(root, text="name pls:").pack()
entry_name=tk.Entry(root)
entry_name.pack()
tk.Button(root, text="     ",command=lol).pack(pady=10)
chao = tk.Label(root, text="", font=("Arial", 12))
chao.pack(pady=10)
tk.Button(root, text="lightblue", command=lb).pack(pady=2)
tk.Button(root, text="red", command=red).pack(pady=2)
tk.Button(root, text="can't choose?", command=rd).pack(pady=2)
tk.Button(root, text="another", command=de).pack(pady=2)

root.mainloop()
#Yeu cau1:Dang nhap ten vao o,roi press the button,va hien thi xin chao,ten.
#2:Bam vao nut doi mau,thay doimau sac.