[Python]GUI-tkinter

# -*- coding: utf-8 -*-

from tkinter import *
def clicked():
    print("hi")


mainloop()
btn = Button()
btn.pack()
btn['text'] = 'click me'
btn['command'] = clicked

# -*- coding: utf-8 -*-

from tkinter import *

Label(text="first window").pack()
second = Toplevel()
Label(second, text="second window").pack()
mainloop()

# %%
help(Pack.config)
help(Grid.configure)
help(Place.config)

# -*- coding: utf-8 -*-

from tkinter import *
top = Tk()


def callback(event):
    print(event.x, event.y)


top.bind('<Button-1>', callback)
# <Button-1> 是鼠标左键单击事件
mainloop()

# -*- coding: utf-8 -*-

from tkinter import *
from tkinter.scrolledtext import ScrolledText


def load():
    with open(filename.get()) as file:
        contents.delete('1.0', END)
        contents.insert(INSERT, file.read())


def save():
    with open(filename.get(), 'w') as file:
        file.write(contents.get('1.0', END))


top = Tk()
top.title("Simple Editor")
contents = ScrolledText()
contents.pack(side=BOTTOM, expand=True, fill=BOTH)

filename = Entry()
filename.pack(side=LEFT, expand=True, fill=X)

Button(text='Open', command=load).pack(side=LEFT)
Button(text='Save', command=save).pack(side=LEFT)

mainloop()