Python中tkinter库的简单使用

import tkinter as tk
root = tk.Tk()
root.mainloop()

import tkinter as tk
root =tk.Tk()
label = tk.Label(root, text="Hello World!")
label.pack()
button = tk.Button(root, text="Click Me!")
button.pack()
entry = tk.Entry(root)
entry.pack()
root.mainloop()

import tkinter as tk
def button_click(event):
    print("Button clicked")
root = tk.Tk()
button = tk.Button(root, text="Click Me!")
button.bind("<Button-1>", button_click)
button.pack()
root.mainloop()

import tkinter as tk
root = tk.Tk()
# 使用 pack# 将控件从上到下依次排列
label1 = tk.Label(root, text="Label 1")
label1.pack()
label2 = tk.Label(root, text="Label 2")
label2.pack()
# 使用 grid
# 将控件放置在一个网格中
button1 = tk.Button(root, text="Button 1")
button1.grid(row=0, column=0)
button2 = tk.Button(root, text="Button 2")
button2.grid(row=0, column=1)
button3 = tk.Button(root, text="Button 3")
button3.grid(row=1, column=0, columnspan=2)
# 使用 place
# 使用绝对位置和大小放置控件
entry = tk.Entry(root)
entry.place(x=50, y=50, width=100, height=25)
root.mainloop()