Python Tkinter库从入门到进阶使用教程

import tkinter as tk

# 创建主窗口
root = tk.Tk()
# 设置窗口标题
root.title("My Tkinter Window")
# 进入事件循环
root.mainloop()

label = tk.Label(root, text="Hello, Tkinter!")
button = tk.Button(root, text="Click me!")

label.pack()  # 将标签添加到窗口
button.pack()  # 将按钮添加到窗口

def on_button_click():
    label.config(text="Button clicked!")

button.config(command=on_button_click)

label1 = tk.Label(root, text="Label 1")
label2 = tk.Label(root, text="Label 2")

label1.grid(row=0, column=0)
label2.grid(row=0, column=1)

label.config(font=("Arial", 12, "bold"), fg="blue")

canvas = tk.Canvas(root, width=200, height=100)
canvas.create_oval(50, 25, 150, 75, fill="blue")
canvas.pack()

import tkinter as tk
from matplotlib.figure import Figure
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
root = tk.Tk()
# 创建Matplotlib图表
fig = Figure(figsize=(5, 4), dpi=100)
plot = fig.add_subplot(1, 1, 1)
plot.plot([1, 2, 3, 4, 5], [2, 4, 1, 6, 8])
# 将Matplotlib图表嵌入Tkinter窗口
canvas = FigureCanvasTkAgg(fig, master=root)
canvas_widget = canvas.get_tk_widget()
canvas_widget.pack()
root.mainloop()

import tkinter as tk
import sqlite3
def create_table():
    connection = sqlite3.connect("example.db")
    cursor = connection.cursor()
    cursor.execute("CREATE TABLE IF NOT EXISTS users (id INTEGER PRIMARY KEY, name TEXT)")
    connection.commit()
    connection.close()
def insert_data(name):
    connection = sqlite3.connect("example.db")
    cursor = connection.cursor()
    cursor.execute("INSERT INTO users (name) VALUES (?)", (name,))
    connection.commit()
    connection.close()
root = tk.Tk()
create_table()
entry_name = tk.Entry(root)
entry_name.pack()
def on_submit():
    name = entry_name.get()
    insert_data(name)
button_submit = tk.Button(root, text="Submit", command=on_submit)
button_submit.pack()
root.mainloop()

import unittest
from tkinter_app import MyApplication
class TestMyApplication(unittest.TestCase):
    def test_initialization(self):
        app = MyApplication()
        self.assertEqual(app.title(), "My Tkinter App")
if __name__ == "__main__":
    unittest.main()

pip install pyinstaller
pyinstaller --onefile my_application.py

def on_login_click():
    username = entry_username.get()
    password = entry_password.get()
    if username == "admin" and password == "123":
        label_result.config(text="Login successful!")
    else:
        label_result.config(text="Login failed!")
# 创建登录窗口
login_window = tk.Tk()
login_window.title("Login")
# 用户名和密码输入框
label_username = tk.Label(login_window, text="Username:")
entry_username = tk.Entry(login_window)
label_password = tk.Label(login_window, text="Password:")
entry_password = tk.Entry(login_window, show="*")
# 登录按钮
button_login = tk.Button(login_window, text="Login", command=on_login_click)
# 结果标签
label_result = tk.Label(login_window, text="")
# 布局管理
label_username.grid(row=0, column=0)
entry_username.grid(row=0, column=1)
label_password.grid(row=1, column=0)
entry_password.grid(row=1, column=1)
button_login.grid(row=2, column=0, columnspan=2)
label_result.grid(row=3, column=0, columnspan=2)
login_window.mainloop()