python Tkinter的一些记录

1. Label里面的文本对齐方式：http://www.hiadmin.org/code/python_tkinter_label
Label(root, text="www.hiadmin.org",bg="red",width=20,height=2, wraplength=80,anchor="w",anchor="w",justify="left").pack()

2. Listbox + Scrollbar

listbox = Listbox(root, width=c1Width, selectmode=MULTIPLE)
listbox.grid(row=10, column=1)
listboxScrollbar = Scrollbar(root)
listboxScrollbar.grid(row=10, column=1, sticky=N + S + E)
listbox['yscrollcommand'] = listboxScrollbar.set
listboxScrollbar['command'] = listbox.yview

使用grid布局，listbox和scrollbar占同一个单元格，
再使用sticky=N + S + E制定scrollbar的位置是:北+南+东(就是说从北到南，就是垂直占满；靠右边，就是说居右)
让两个空间产生互动效果
listbox['yscrollcommand'] = listboxScrollbar.set
listboxScrollbar['command'] = listbox.yview

3. 窗口居中对齐

from Tkinter import *
def center_window(w=300, h=200):
    # get screen width and height
    ws = root.winfo_screenwidth()
    hs = root.winfo_screenheight()
    # calculate position x, y
    x = (ws/2) - (w/2)   
    y = (hs/2) - (h/2)
    root.geometry('%dx%d+%d+%d' % (w, h, x, y))
root = Tk()
center_window(500, 300)
root.mainloop()

4. Text + Scollbar

    messageText=Text(root, height=15,width=122, fg="red")

    vLabelScrollbar = Scrollbar(root)
    vLabelScrollbar.grid(row=12, column=4, sticky=N + S + E)
    hLabelScrollbar = Scrollbar(root, orient=HORIZONTAL)
    hLabelScrollbar.grid(row=13, column=0, columnspan=4, sticky=N + W + E)
    messageText.grid(row=12,column=0, columnspan=4)

    vLabelScrollbar['command'] = messageText.yview
    messageText.config(yscrollcommand=vLabelScrollbar.set)
    hLabelScrollbar['command'] = messageText.xview
    messageText.config(xscrollcommand=hLabelScrollbar.set)

5. Text设定文本，Text居然木有textvariable

t = Text(root) 
t.pack() 
t.insert(1.0,'0123456789')
t.insert(END,'jcodeer')
t.focus_force()

使用focus_force()来使光标在文本后面

6. 禁止Tk()生成的root改变尺寸： root.resizable(0,0)