Python基础入门学习笔记 066 GUI的终极选择：Tkinter3

实例1：Checkbutton 组件

 1 from tkinter import *
 2 
 3 root = Tk()
 4 #需要一个Tkinter变量，用于表示该按钮是否被选中
 5 v = IntVar()
 6 c = Checkbutton(root,text="测试一下",variable = v)
 7 
 8 c.pack()
 9 #如果被选中，那么变量v被赋值为1，否则为0
10 #可以用个Label标签动态地给大家展示：
11 lable = Label(root,textvariable = v)
12 lable.pack()
13 
14 mainloop()

 实例2：

 1 from tkinter import *
 2 
 3 root = Tk()
 4 
 5 GIRLS = ["貂蝉","王昭君","西施","杨玉环"]
 6 v = []
 7 for girl in GIRLS:
 8     v.append(girl)
 9     c = Checkbutton(root,text = girl,variable = v[-1])#-1表示每次取v列表中最后一个元素，即刚加入的那个元素
10     c.pack(anchor = W)#W(western)向左对齐
11 
12 mainloop()

 实例3：Radiobutton 组件

 1 from tkinter import *
 2 
 3 root = Tk()
 4 
 5 v = IntVar()#如果被选中，v被赋值为1，否则为0
 6 Radiobutton(root,text = "One",variable = v,value = 1).pack(anchor = W)
 7 #value表示第一个按钮被选中时，v的值赋值给variable
 8 
 9 Radiobutton(root,text = "Two",variable = v,value = 2).pack(anchor = W)
10 
11 Radiobutton(root,text = "Three",variable = v,value = 3).pack(anchor = W)
12 
13 Radiobutton(root,text = "Four",variable = v,value = 4).pack(anchor = W)
14 
15 mainloop()

 实例4：循环处理

 1 from tkinter import *
 2 
 3 root = Tk()
 4 
 5 LANGS = [
 6     ("Python",1),
 7     ("Perl",2),
 8     ("Ruby",3),
 9     ("Lua",4)]
10      
11 
12 v = IntVar()#如果被选中，v被赋值为1，否则为0
13 v.set(1)#将1设置为默认值
14 for lang,num in LANGS:
15     b= Radiobutton(root,text = lang,variable = v,value = num)
16     b.pack(anchor = W)
17 #value表示第一个按钮被选中时，v的值赋值给variable
18 
19 mainloop()

 实例5：改成按钮形式

 1 from tkinter import *
 2 
 3 root = Tk()
 4 
 5 LANGS = [
 6     ("Python",1),
 7     ("Perl",2),
 8     ("Ruby",3),
 9     ("Lua",4)]
10      
11 
12 v = IntVar()#如果被选中，v被赋值为1，否则为0
13 v.set(1)#将1设置为默认值
14 for lang,num in LANGS:
15     b= Radiobutton(root,text = lang,variable = v,value = num,indicatoron = False)
16     b.pack(fill = X)#表示横向填充
17 #value表示第一个按钮被选中时，v的值赋值给variable
18 
19 mainloop()

 实例6：LabelFrame 组件

 1 from tkinter import *
 2 
 3 root = Tk()
 4 
 5 group = LabelFrame(root,text = "最好的脚本语言是？",padx = 10,pady = 10)#按钮相对边框的偏移
 6 group.pack(padx = 10,pady = 10)#框架相对边框的偏移
 7 
 8 LANGS = [
 9     ("Python",1),
10     ("Perl",2),
11     ("Ruby",3),
12     ("Lua",4)]
13      
14 
15 v = IntVar()#如果被选中，v被赋值为1，否则为0
16 v.set(1)#将1设置为默认值
17 for lang,num in LANGS:
18     b= Radiobutton(group,text = lang,variable = v,value = num,indicatoron = False)
19     b.pack(fill = X)
20 #value表示第一个按钮被选中时，v的值赋值给variable
21 
22 mainloop()