Python入門案例之Hello

Python入門案例之Hello

from Tkinter import *class Application(Frame):    def say_hi(self):        print 'hello'    def createWiegets(self):        self.QUIT = Button(self)        self.QUIT["text"] = "QUIT"        self.QUIT["fg"] = "red"        self.QUIT["command"] = self.quit        self.QUIT.pack({"side":"left"})        self.hi_there = Button(self)        self.hi_there["text"] = "hello"        self.hi_there["command"] = self.say_hi        self.hi_there.pack({"side":"left"})    def __init__(self,master=None):        Frame.__init__(self,master)        self.pack()        self.createWiegets()root = Tk()app = Application(master = root)app.mainloop()root.destroy()

這段代碼說明了如何使用Python來建立一個圖形介面。使用的是python中的Tkinter這個圖形介面庫。

匯入相應的模組：from Tkinter import * 定義一個類，繼承Frame

class Application(Frame): def say_hi(self): print 'hello' def createWiegets(self): self.QUIT = Button(self) self.QUIT["text"] = "QUIT" self.QUIT["fg"] = "red" self.QUIT["command"] = self.quit self.QUIT.pack({"side":"left"}) self.hi_there = Button(self) self.hi_there["text"] = "hello" self.hi_there["command"] = self.say_hi self.hi_there.pack({"side":"left"}) def __init__(self,master=None): Frame.__init__(self,master) self.pack() self.createWiegets()

定義控制項

def createWiegets(self): self.QUIT = Button(self) self.QUIT["text"] = "QUIT" self.QUIT["fg"] = "red" self.QUIT["command"] = self.quit self.QUIT.pack({"side":"left"}) self.hi_there = Button(self) self.hi_there["text"] = "hello" self.hi_there["command"] = self.say_hi self.hi_there.pack({"side":"left"})

建立對象並使用

root = Tk()app = Application(master = root)app.mainloop()root.destroy()

在上面的程式碼片段中，root是代表的是視窗的容器，我們建立Application對象，並且指定了它的視窗容器，開啟訊息佇列迴圈，最後銷毀視窗。