GUI编程02

1 编写一个导航栏

 from tkinter import *

 root = Tk()
 root.title("测试")
 root.geometry("400x400+400+200")
 root.resizable(width = False, height = False)

 def hello() :
     print("hello boy")

 menubar = Menu(root)
 menubar.add_command(label = "hello", command = hello)
 menubar.add_command(label = 'quit', command = root.quit)

 root.config(menu = menubar)

 root.mainloop() 

简例

2 编写一个具有下拉菜单的导航栏

 from tkinter import *

 root = Tk()
 root.title("测试")
 root.geometry("400x400+400+200")
 # root.resizable(width = False, height = False)

 def hello() :
     l = Label(root, text = "hello boy")
     l.pack()

 def save() :
     l = Label(root, text = "保存文件成功")
     l.pack()

 def cut() :
     l = Label(root, text = "剪切成功")
     l.pack()

 def copy() :
     l = Label(root, text = "复制成功")
     l.pack()

 def paste() :
     l = Label(root, text = "粘贴成功")
     l.pack()

 def about() :
     l = Label(root, text = "我是开发者")
     l.pack()

 menubar = Menu(root) # 创建菜单栏对象实例

 filemenu = Menu(menubar, tearoff = 0) # 创建下拉菜单栏对象实例
 filemenu.add_command(label = "Open", command = hello)
 filemenu.add_command(label = "Save", command = save)
 filemenu.add_separator() # 添加分割线
 filemenu.add_command(label = "Exit", command = root.quit)

 # 将下拉菜单添加到顶级菜单栏中
 menubar.add_cascade(label = "File", menu = filemenu) 

 editmenu = Menu(menubar, tearoff = 0)
 editmenu.add_command(label = "Cut", command = cut)
 editmenu.add_command(label = "Copy", command = copy)
 editmenu.add_separator()
 editmenu.add_command(label = "Paste", command = paste)
 menubar.add_cascade(label = "Edit", menu = editmenu)

 helpmenu = Menu(menubar, tearoff = 0)
 helpmenu.add_command(label = "About", command = about)
 menubar.add_cascade(label = "Help", menu = helpmenu)

 root.config(menu = menubar)

 root.mainloop() 

简例

笔记待更新......