ch13_1.py
# ch13_1.py from tkinter import * root = Tk() root.title("ch13_1") root.geometry("300x180") var = StringVar(root) optionmenu = OptionMenu(root,var,"Python","Java","C") optionmenu.pack() root.mainloop()ch13_2.py
# ch13_2.py from tkinter import * root = Tk() root.title("ch13_2") root.geometry("300x180") omTuple = ("Python","Java","C") # 使用元组 # omTuple = ["Python","Java","C"] # 使用列表 var = StringVar(root) optionmenu = OptionMenu(root,var,*omTuple) optionmenu.pack() root.mainloop()ch13_3_1.py
# ch13_3_1.py from tkinter import * root = Tk() root.title("ch13_3_1") root.geometry("300x180") omTuple = ("Python","Java","C") # 使用元组 # omTuple = ["Python","Java","C"] # 使用列表 var = StringVar(root) var.set(omTuple[0]) optionmenu = OptionMenu(root,var,*omTuple) optionmenu.pack() root.mainloop()ch13_3.py
# ch13_3.py from tkinter import * root = Tk() root.title("ch13_3") root.geometry("300x180") omTuple = ("Python","Java","C") # 使用元组 # omTuple = ["Python","Java","C"] # 使用列表 var = StringVar(root) var.set("Python") optionmenu = OptionMenu(root,var,*omTuple) optionmenu.pack() root.mainloop()ch13_4.py
# ch13_4.py from tkinter import * def printSelection(): print("The selection is : ",var.get()) root = Tk() root.title("ch13_4") root.geometry("300x180") omTuple = ("Python","Java","C") # 使用元组 # omTuple = ["Python","Java","C"] # 使用列表 var = StringVar(root) var.set("Python") optionmenu = OptionMenu(root,var,*omTuple) optionmenu.pack(pady=10) btn = Button(root,text="Print",command=printSelection) btn.pack(pady=10,anchor=S,side=BOTTOM) root.mainloop()ch13_5.py
# ch13_5.py from tkinter import * from tkinter.ttk import * root = Tk() root.title("ch13_5") # 窗口标题 root.geometry("300x120") var = StringVar() cb = Combobox( root, textvariable=var, value=("Python","Java","C#","C") ) cb.pack(pady=10) root.mainloop()ch13_6.py
# ch13_6.py from tkinter import * from tkinter.ttk import * root = Tk() root.title("ch13_6") # 窗口标题 root.geometry("300x120") var = StringVar() cb = Combobox(root,textvariable=var) # 创建Combobox cb["value"] = ("Python","Java","C#","C","C++") # 设置选项内容 cb.pack(pady=10) root.mainloop()ch13_7.py
# ch13_7.py from tkinter import * from tkinter.ttk import * root = Tk() root.title("ch13_7") # 窗口标题 root.geometry("300x120") var = StringVar() cb = Combobox(root,textvariable=var) # 创建Combobox cb["value"] = ("Python","Java","C#","C","C++") # 设置选项内容 cb.current(0) cb.pack(pady=10) root.mainloop()ch13_8.py
# ch13_8.py from tkinter import * from tkinter.ttk import * root = Tk() root.title("ch13_7") # 窗口标题 root.geometry("300x120") var = StringVar() cb = Combobox(root,textvariable=var) # 创建Combobox cb["value"] = ("Python","Java","C#","C","C++") # 设置选项内容 var.set("Python") # cb.current(0) cb.pack(pady=10) root.mainloop()ch13_9.py
# ch13_9.py from tkinter import * from tkinter.ttk import * def printSelection(): # 打印选择的结果 print(var.get()) root = Tk() root.title("ch13_9") # 窗口标题 root.geometry("300x120") var = StringVar() cb = Combobox(root,textvariable=var) # 创建Combobox cb["value"] = ("Python","Java","C#","C","C++") # 设置选项内容 cb.current(0) cb.pack(pady=10) btn = Button(root,text="Print",command=printSelection) # 创建按钮 btn.pack(pady=10,anchor=S,side=BOTTOM) root.mainloop()ch13_10.py
# ch13_10.py # from tkinter import * from tkinter.ttk import * from tkinter import * # 注意这两句导入语句的顺序，颠倒之后会有差异 # tkinter.label和tkinter.ttk.label的参数有差异，bg和background会有不同 def comboSelection(event): # 打印选择的结果 labelVar.set(var.get()) # 同步标签内容 root = Tk() root.title("ch13_10") # 窗口标题 root.geometry("300x120") var = StringVar() cb = Combobox(root,textvariable=var) # 创建Combobox cb["value"] = ("Python","Java","C#","C","C++") # 设置选项内容 cb.current(0) cb.bind("<<ComboboxSelected>>",comboSelection) # 绑定 cb.pack(side=LEFT,padx=10,pady=10) print("var: ",var.get()) labelVar = StringVar() label = Label(root,bg="yellow",textvariable=labelVar) labelVar.set(var.get()) label.pack(side=LEFT) root.mainloop()