十二.GUI

tkinter模块(tkinter是一个跨平台的PythonGUI工具包)：

#Tkinter是一个跨平台的Python GUI工具包

import tkinter

top=tkinter.Tk() #可以不写

btn=tkinter.Button()

#pack()控制从属控件在所属主体内部出现的位置

btn.pack()

btn["text"]="Click Me!"

def clicked():

    print("I was clicked!")

btn["command"]=clicked #不能是clicked()，要指向函数本身。

#下面的写法也可以

#btn.config(text="Click Again",command=clicked)

#如果没有指定主控件，则指向顶级主窗口

tkinter.Button(text="Click Again",command=clicked).pack()

tkinter.Label(text="I'm in the first window!").pack()

#建立主窗口外另一个窗口，并用label指向它

second=tkinter.Toplevel()

tkinter.Label(second,text="I'm in the second window!").pack()

for i in range(10):

    tkinter.Button(text=i).pack()

def callback(event):

    print(event.x,event.y)

#通过bind关联事件到top

top.bind("<Button-1>",callback)

tkinter.mainloop()

print("Finish")

GUI文本编辑器：

#Tkinter是一个跨平台的Python GUI工具包

import tkinter,tkinter.scrolledtext

#----------------------------------------

Top=tkinter.Tk()

Top.title("simple editor")

TextContents=tkinter.scrolledtext.ScrolledText()

#pack()控制从属控件在所属主体内部出现的位置

TextContents.pack(side=tkinter.BOTTOM,expand=True,fill=tkinter.BOTH)

FileName=tkinter.Entry()

FileName.pack(side=tkinter.LEFT,expand=True,fill=tkinter.X)

#----------------------------------------

def load(filename,contents):

    with open(filename.get()) as file:

        contents.delete("1.0",tkinter.END)

        contents.insert(tkinter.INSERT,file.read())

def save(filename,contents):

    with open(filename.get(),"w") as file:

        file.write(contents.get("1.0",tkinter.END))

#-----------------------------------------

def buttonLoad():

    load(FileName,TextContents)

def buttonSave():

    save(FileName,TextContents)

tkinter.Button(text="Open",command=buttonLoad).pack(side=tkinter.LEFT)

tkinter.Button(text="Save",command=buttonSave).pack(side=tkinter.LEFT)

#-----------------------------------------

tkinter.mainloop()

Myself

from tkinter import *

from tkinter.scrolledtext import ScrolledText

#---------------------

top=Tk()

top.title("simple editor")

contents=ScrolledText()

#pack()控制从属控件在所属主体内部出现的位置

contents.pack(side=BOTTOM,expand=True,fill=BOTH)

filename=Entry()

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

#----------------------

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))

#----------------------

Button(text="Open",command=load).pack(side=LEFT)

Button(text="Save",command=save).pack(side=LEFT)

mainloop()

Not Myself