Python Learning Tkinter notes (4)

This is mainly to learn how to do the input and output box, such as the production of password interface.

Here is a simple input box for making:

From tkinter Import *root = Tk () E = Entry (root) #输入框e. Pack (padx=20,pady=20) e.delete (0,end)    #把窗口从0到最后清空e. Insert (0, " Default text ")  # Place the default text typeface at 0 mainloop ()

A slightly more complicated box

From tkinter Import *root = Tk () Label (root,text= "artwork:"). Grid (row=0,column=0) #grid中关系着元素的网格布局第0行第0个位置Label (root,text= ""). Grid (row=1,column=0) #布局第1行第0个位置e1 =entry (root) e2=entry (root) E1.grid (row=0,column=1,padx=10,pady=5) #布局在 (0, 1) position E2.grid (row=1,column=1,padx=10,pady=5) #布局在 (the) Position def Show ():    print ("Work:%s"%e1.get ()) #通过调用Entry的get () The function can get the input string    print ("%s"%e2.get ())    Button (root,text= "Get Information", width=10,command=show). Grid (row=3,column=0 , sticky=w,padx=10,pady=5) #width关系着按键长度, command is a function call after pressing the key, sticky for W the module is placed on the left button (root,text= "Exit", width=10, command=root.quit). Grid (row=3,column=1,sticky=e,padx=10,pady=5) #root. Grid is the function that exits the window, sticky to E the module is placed Mainloop ()

If it is the account password, how to make the password with * to indicate it?

From tkinter Import *root = Tk () label (root,text= "Account:"). Grid (row=0,column=0) label (root,text= "Password:"). Grid (Row=1,column =0) V1 = stringvar () v2 = Stringvar () e1=entry (ROOT,TEXTVARIABLE=V1) e2=entry (root,textvariable=v2,show= "*") #用 * Show Input # Show is a representation of the input characters, such as can be *, but can also be other characters, such as ￥$ and so on E1.grid (row=0,column=1,padx=10,pady=5) E2.grid (row=1,column=1,padx= 10,PADY=5) def show ():    print ("Account:%s"%e1.get ()) #Entry. Get () to get the input string    print ("Password:%s"%e2.get ())    E1.delete (0,end) #清空输入框    e2.delete (0,end)    Button (root,text= "login", width=10,command=show). Grid (Row=3,column =0,sticky=w,padx=10,pady=5) button (root,text= "Exit", Width=10,command=root.quit). Grid (ROW=3,COLUMN=1,STICKY=E,PADX =10,pady=5) Mainloop ()

From tkinter Import *master = Tk () def test ():    if e1.get () = = "Hello":        print ("correct")        return True    else:        Print ("error")        E1.delete (0,end)        return Falsev=stringvar () e1=entry (master,textvariable=v,validate= "focusout ",         validatecommand=test) #validate为focusout的意思是, Validatecommand will be called when the cursor is removed                              # Invalidcommand is called E2=entry (Master) e1.pack (padx=10,pady=10) e2.pack (padx=10,pady=10) when the Validatecommand display is illegal Mainloop ()

Python Learning Tkinter notes (4)