GUI编程01

 1 from tkinter import * # 导入模块
 2 
 3 root = Tk() # 创建主窗口对象root
 4 root.title("测试窗口") # 设定主窗口的名称
 5 root.geometry("400x400+400+100") # 设定主窗口的大小和位置
 6 root.resizable(width = False, height = False) # 设定主窗口大小是否可改变
 7 
 8 label01 = Label(root, text = "我是标签") # 添加标签对象在主窗口中
 9 label01.pack() # 对label01对象进行布局
10 
11 root.mainloop()
12 # 主循环 -->> 当所有对象都创建完成并且进行布局后就会进入主循环，等待事件触发

1 from tkinter import *
2 root = Tk()
3 root.geometry("400x400+400+200")
4 
5 # 实例化标签对象
6 label01 = Label(text = "warrior", bg = "red", bd = "10", font = ("楷体", 10), width = 20, height = 20)
7 label01.pack() # 位标签对象布局
8 
9 root.mainloop()

 1 from tkinter import *
 2 
 3 root = Tk()
 4 root.title("测试")
 5 root.geometry("400x400+400+200")
 6 root.resizable(width = False, height = False)
 7 
 8 lab01 = Label(text = "我是标签", bg = "red", bd = "10")
 9 lab01.pack()
10 
11 fra = Frame(root) # 创建一个容器对象， 根对象是root
12 
13 fra_l = Frame(fra) # 创建一个容器对象，根对象是fra
14 
15 # 创建两个标签对象，这俩个标签对象都在fra_l这个容器中
16 lab_l1 = Label(fra_l, text = "左上", bg = "blue").pack(side = TOP)
17 lab_l2 = Label(fra_l, text = "左下", bg = "red").pack(side = TOP)
18 fra_l.pack(side = LEFT)
19 
20 fra_r = Frame(fra) # 创建一个容器对象，根对象是fra
21 
22 # 创建两个标签对象，这两个标签对象都在fra_r这个容器中
23 lab_r1 = Label(fra_r, text = '右上', bg = "red").pack(side = TOP)
24 lab_r2 = Label(fra_r, text = '右下', bg = "blue").pack(side = TOP)
25 fra_r.pack(side = RIGHT)
26 
27 fra.pack()
28 
29 root.mainloop() 

 1 from tkinter import *
 2 
 3 root = Tk()
 4 root.title("测试")
 5 root.geometry("400x400+400+200")
 6 root.resizable(width = False, height = False)
 7 
 8 var = Variable() # 创建一个变量对象
 9 e = Entry(root, textvariable = var) # var变量对象被绑定在文本框的内容属性
10 # 改变变量对象var的值时文本框对象的内容就会相应改变
11 
12 var.set("warrior") # 为变量对象var设定内容
13 e.pack()
14 
15 root.mainloop() 

 1 from tkinter import *
 2 
 3 root = Tk()
 4 root.title("测试")
 5 root.geometry("400x400+400+200")
 6 root.resizable(width = False, height = False)
 7 
 8 t = Text(root) # 创建多行文本实例
 9 t.insert(1.0, "warrior\n")
10 t.insert(END, "fury")
11 t.insert(END, "HELLO")
12 t.insert(1.0, "WORLD\n")
13 t.delete(1.0, 2.0)
14 t.pack()
15 
16 b = Button(root, text = "按钮")
17 b.pack()
18 
19 
20 root.mainloop() 

 1 from tkinter import *
 2 
 3 root = Tk()
 4 root.title("测试")
 5 root.geometry("400x400+400+200")
 6 root.resizable(width = False, height = False)
 7 
 8 t = Text(root) # 创建多行文本实例
 9 t.pack()
10 
11 def print_hello() :
12     t.insert(END, "重庆.足智\n")
13 
14 b1 = Button(root, text = "点击打印", command = print_hello)
15 b1.pack()
16 
17 b2 = Button(root, text = "点击退出", command = root.quit)
18 b2.pack()
19 
20 
21 root.mainloop() 

 1 from tkinter import *
 2 
 3 root = Tk()
 4 root.title("测试")
 5 root.geometry("400x400+400+200")
 6 root.resizable(width = False, height = False)
 7 
 8 lb = Listbox(root) # 创建一个列表实例对象
 9 for item in ['python', 'java', 'php']: # 向列表对象插入数据
10     lb.insert(END, item)
11 
12 lb.pack()
13 
14 lb01 = Listbox(root, selectmode = MULTIPLE) # 多选模式
15 for item in ['java', 'c++', 'node.js'] :
16     lb01.insert(END, item)
17 lb01.pack()
18 root.mainloop()