ch7_1.py
# ch7_1.py from tkinter import * def printSelection(): num = var.get() if num == 1: label.config(text="你是男生") else: label.config(text="你是女生") root = Tk() root.title("ch7_1") # 设置窗口标题 var = IntVar() # 选项按钮绑定的变量 var.set(1) # 默认选项是男生 # var.set(0) # 可以设置初始不默认任何选项 label = Label(root,text="这是预设，尚未选择",bg="lightyellow",width=30) label.pack() rbman = Radiobutton(root,text="男生", # 男生选项按钮 variable=var,value=1, # value用来区分所选择的选项按钮 command=printSelection) # 女生选项按钮 rbman.pack() rbwoman = Radiobutton(root,text="女生", variable=var,value=2, command=printSelection) rbwoman.pack() root.mainloop()ch7_2.py
# ch7_2.py from tkinter import * def printSelection(): label.config(text="你是"+var.get()) root = Tk() root.title("ch7_2") # 设置窗口标题 var = StringVar() # 选项按钮绑定的变量 var.set("男生") # 默认选项是男生 # var.set("生") # 默认选项是空 # var.set(0) # 可以设置初始不默认任何选项 label = Label(root,text="这是预设，尚未选择",bg="lightyellow",width=30) label.pack() rbman = Radiobutton(root,text="男生-吴彦祖", # 男生选项按钮 variable=var,value="男生", # value用来区分所选择的选项按钮 command=printSelection) # 女生选项按钮 rbman.pack() rbwoman = Radiobutton(root,text="女生-刘亦菲", variable=var,value="女生", command=printSelection) rbwoman.pack() root.mainloop()ch7_3.py
# ch7_2.py from tkinter import * def printSelection(): print(cities[var.get()],"被选中！！！") root = Tk() root.title("ch7_3") # 设置窗口标题 cities = { 0:"北京" ,1:"上海", 2:"广州",3:"深圳", 4:"杭州",5:"苏州", } var = IntVar() # 选项按钮绑定的变量 var.set(-1) # 默认选项 # var.set(0) # 默认选项 label = Label(root,text="选择最喜欢的城市", fg="blue",bg="lightyellow",width=30) label.pack() for val,city in cities.items(): Radiobutton( root, text=city, variable=var,value=val, command=printSelection ).pack() root.mainloop()ch7_4.py
# ch7_4.py from tkinter import * def printSelection(): print(cities[var.get()],"被选中！！！") root = Tk() root.title("ch7_4") # 设置窗口标题 cities = { 0:"北京" ,1:"上海", 2:"广州",3:"深圳", 4:"杭州",5:"苏州", } var = IntVar() # 选项按钮绑定的变量 var.set(0) # 默认选项 # var.set(0) # 默认选项 label = Label(root,text="选择最喜欢的城市", fg="blue",bg="lightyellow",width=30) label.pack() for val,city in cities.items(): Radiobutton( root, text=city, indicatoron = 0, # 用盒子取代选项按钮 width=30, variable=var,value=val, command=printSelection ).pack() root.mainloop()ch7_5.py
# ch7_5.py from tkinter import * def printSelection(): label.config(text="You have chosen "+var.get()+".gif.") root = Tk() root.title("ch7_5") img_chuckle = PhotoImage(file="chuckle.gif") img_shock = PhotoImage(file="shock.gif") img_snap = PhotoImage(file="snap.gif") var = StringVar() # 选项按钮绑定的变量 var.set(" ") # 默认全不选 # var.set("") # 默认全选 label = Label(root,text="This is a defult option, please choose...",bg="lightyellow",width=35) label.pack() rb_chuckle = Radiobutton(root,image=img_chuckle, variable=var,value="chuckle", command=printSelection) rb_chuckle.pack() rb_shock = Radiobutton(root,image=img_shock, variable=var,value="shock", command=printSelection) rb_shock.pack() rb_snap = Radiobutton(root,image=img_snap, variable=var,value="snap", command=printSelection) rb_snap.pack() root.mainloop()ch7_6.py
# ch7_6.py from tkinter import * def printSelection(): label.config(text="You have chosen "+var.get()+".gif.") root = Tk() root.title("ch7_6") img_chuckle = PhotoImage(file="chuckle.gif") img_shock = PhotoImage(file="shock.gif") img_snap = PhotoImage(file="snap.gif") var = StringVar() # 选项按钮绑定的变量 var.set(" ") # 默认全不选 # var.set("") # 默认全选 label = Label(root,text="This is a defult option, please choose...",bg="lightyellow",width=35) label.pack() rb_chuckle = Radiobutton(root,image=img_chuckle, text="Gakki chuckles.\t",compound=RIGHT, variable=var,value="chuckle", command=printSelection) rb_chuckle.pack() rb_shock = Radiobutton(root,image=img_shock, text="Gakki shocks.\t",compound=RIGHT, variable=var,value="shock", command=printSelection) rb_shock.pack() rb_snap = Radiobutton(root,image=img_snap, text="Gakki snaps her fingers.\t",compound=RIGHT, variable=var,value="snap", command=printSelection) rb_snap.pack() root.mainloop()ch7_7.py
# ch7_7.py from tkinter import * root = Tk() root.title("ch7_7") lab = Label(root,text="请选择喜欢的运动",fg="blue",bg="lightyellow",width=30) lab.grid(row=0) var1 = IntVar() cbtnNFL = Checkbutton(root,text="美式足球",variable=var1) cbtnNFL.grid(row=1,sticky=W) # 左对齐 var2 = IntVar() cbtnMLB = Checkbutton(root,text="棒球",variable=var2) cbtnMLB.grid(row=2,sticky=W) # 左对齐 var3 = IntVar() cbtnNBA = Checkbutton(root,text="篮球",variable=var3) cbtnNBA.grid(row=3,sticky=W) # 左对齐 root.mainloop()ch7_8.py
# ch7_8.py from tkinter import * def printInfo(): selection = "" # print("before iteration:") # print(selection) for i in checkboxes.keys(): # 检查此字典的关键字,同: for i in checkboxes: if checkboxes[i].get() == True: # 若被选中则执行 selection = selection + sports[i] + "\t" # print(selection) # print("after iteration:") print(selection) root = Tk() root.title("ch7_8") # 窗口标题 label = Label(root,text="请选择喜欢的运动",fg="blue",bg="lightyellow",width=30) label.grid(row=0) sports = {0:"美式足球",1:"棒球",2:"篮球",3:"网球",4:"足球",5:"游泳"} # 运动项目构成的字典 checkboxes = {} # 字典,存放被选取项目的BooleanVar变量 for i in range(len(sports)): # 根据运动字典建立复选框 checkboxes[i] = BooleanVar() # 建立布尔变量对象 Checkbutton(root,text=sports[i], variable=checkboxes[i]).grid(row=i+1,sticky=W) btn = Button(root,text="确定",width=10,command=printInfo) btn.grid(row=i+2) # btn.grid() root.mainloop()ch7_9.py
# ch7_9.py from tkinter import * # 以下是callback方法 def selAll(): # 选取全部字符串 entry.select_range(0,END) def deSel(): # 取消选取 entry.select_clear() def clr(): # 删除文字 entry.delete(0,END) def read_only(): print("调用read_only函数中...",var.get()) if var.get() == True: entry.config(state=DISABLED) # 设为DISABLED 不可使用 else: entry.config(state=NORMAL) # 设为NORMAL root = Tk() root.title("ch7_9") # 窗口标题 # 以下row=0建立Entry entry = Entry(root) entry.grid(row=0,column=0,columnspan=4, padx=5,pady=5,sticky=W) # 以下row=1建立Button btnSel = Button(root,text="全选",command=selAll) btnSel.grid(row=1,column=0,padx=5,pady=5,sticky=W) btnDesel = Button(root,text="取消选取",command=deSel) btnDesel.grid(row=1,column=1,padx=5,pady=5,sticky=W) btnClr = Button(root,text="删除",command=clr) btnClr.grid(row=1,column=2,padx=5,pady=5,sticky=W) btnQuit = Button(root,text="结束程序",command=root.destroy) btnQuit.grid(row=1,column=3,padx=5,pady=5,sticky=W) # 以下row=2建立Checkboxes var = BooleanVar() var.set(False) # var.set(True) # read_only() chkReadOnly = Checkbutton(root,text="只读",variable=var, command=read_only) chkReadOnly.grid(row=2,column=0) root.mainloop()