我正在使用tkinter中的python gui并尝试使用单位转换器。最初，当我把光标放在较低的单选按钮时，它们会自动被选中，请任何人帮助我如何摆脱它。
from Tkinter import *
import tkMessageBox
root=Tk()
root.wm_title("Measurement Converter")
def Distance():
def sel():
print var.get()
L1 = Label(root, text="Enter Value :",font=20)
L1.grid(row=3,column=0,padx=(0,10),columnspan=2)
E1=Entry(root,justify=CENTER,width=20).grid(row=3,column=1,padx=(0,0),ipady=10,ipadx=20)
L2 = Label(root, text="units in-")
L2.grid(row=4,column=1,padx=(0,0))
var = IntVar()
R1 = Radiobutton(root, text="Meter", variable=var, value=1,command=sel)
R1.grid(row=4,column=1,padx=(120,0))
R2 = Radiobutton(root, text="Km", variable=var, value=2,command=sel)
R2.grid(row=4,column=1,padx=(240,0))
R3 = Radiobutton(root, text="Feet", variable=var, value=3,command=sel)
R3.grid(row=4,column=1,columnspan=2,padx=(100,0),pady=4)
L3 = Label(root, text="convert into-")
L3.grid(row=5,column=1,padx=(0,0))
var3 = IntVar()
RB1 = Radiobutton(root, text="Meter", variable=var3, value=1,command=sel)
RB1.grid(row=5,column=1,padx=(120,0))
RB2 = Radiobutton(root, text="Km", variable=var3, value=2,command=sel)
RB2.grid(row=5,column=1,padx=(240,0))
RB3 = Radiobutton(root, text="Feet", variable=var3, value=3,command=sel)
RB3.grid(row=5,column=1,columnspan=2,padx=(100,0),pady=5)
label1=Label(root, text='Select any Button to convert it in other Unit',bg="green",fg="white",justify=CENTER,borderwidth=1,font=20,padx=20 )
label1.grid(pady=15,padx=(15,15),row=0,column=1)
buttontext1=StringVar()
button1=Button(root,textvariable=buttontext1,font=25,padx=5,pady=5,width=15,command=Distance,bg='#FF0000')
buttontext1.set("Distance")
button1.grid(row=1,column=0,padx=(100,00))
buttontext2=StringVar()
button2=Button(root,textvariable=buttontext2,font=25,padx=5,pady=5,width=15,command=Distance,bg='#66FF66')
buttontext2.set("Weight")
button2.grid(row=1,column=2,padx=(0,100))
buttontext3=StringVar()
button3=Button(root,textvariable=buttontext3,font=25,padx=5,pady=5,width=15,command=Distance,bg='#3399CC')
buttontext3.set("Temprature")
button3.grid(row=2,column=0,pady=50,padx=(100,0))
buttontext4=StringVar()
button4=Button(root,textvariable=buttontext4,font=25,padx=5,pady=5,width=15,command=Distance,bg='#CCFF00')
buttontext4.set("Volume")
button4.grid(row=2,column=2,padx=(0,100))
root.mainloop()
答案 0 :(得分：1)
我没有时间，所以我很快就开发了这个。这只是一个起点，肯定可以增强。我更喜欢开发类，因此你可以将精细化代码与显示代码分开（你应该开发另一个类并在Gui的calc方法中实例化它）。当您必须进行转换时，您必须查询self.radio“variable”以获取用户选择的选项。如果您需要进一步的帮助，请询问。我会尽快回答。
from Tkinter import *
class Calculate:
def __init__(self):
self.stuff = None #store here cosstants to do conversions...
def convert1(self,startval):#,someother params to specify "from" and "to"):
return startval#this is an identity just as example
def convert2(self,startval):
pass
#...and so on...
class Gui:
def __init__(self):
self.root = Tk()
self.c = Calculate()
self.volumef = StringVar()
self.volumef.set("C")
self.volumet = StringVar()
self.volumet.set("C")
self.weightf = StringVar()
self.weightf.set("K")
self.weightt = StringVar()
self.weightt.set("K")
self.distancef = StringVar()
self.distancef.set("M")
self.distancet = StringVar()
self.distancet.set("M")
self.temperaturef = StringVar()
self.temperaturef.set("C")
self.temperaturet = StringVar()
self.temperaturet.set("C")
self.f3 = None
self.f4 = None
self.f5 = None
self.DISTANCEMODES = [("Meter", "M"),
("Km", "K"),
("Feet", "F")
]
self.VOLUMEMODES = [ ("cm^3","C"),
("m^3","M"),
("mm^3","MM")
]
self.TEMPERATUREMODE = [ ("Celsius","C"),
("Farenheit","H"),
("Kelvin","K")
]
self.WEIGHTMODE = [ ("Kg","K"),
("g","G"),
("mg","M")
]
self.root.title("Conversions")
self.f1 = Frame(self.root,relief=SUNKEN)
self.f1.pack()
self.createWidgets()
self.root.mainloop()
def createWidgets(self):
self.f1 = Frame(self.root)
self.bd = Button(self.f1, text="Distance",command=self.distance,width=10)
self.bd.pack(side=LEFT,padx=10,pady=10)
self.bw = Button(self.f1, text="Weight",command=self.weight,width=10)
self.bw.pack(side=LEFT,padx=10,pady=10)
self.f1.pack()
self.f2 = Frame(self.root)
self.bt = Button(self.f2, text="Temperature",command=self.temperature,width=10)
self.bt.pack(side=LEFT,padx=10,pady=10)
self.bv = Button(self.f2, text="Volume",command=self.volume,width=10)
self.bv.pack(side=LEFT,padx=10,pady=10)
self.f2.pack()
def convert(self,val):
var = self.edit1.get()#get value
if val==0:#choose what conversion applay
#x = self.c.convert1(var,self.volumef,self.volumet)
x = self.c.convert1(var)#do a conversion
print "volume calc"
elif val==1:
x = self.c.convert1(var)#do a conversion
print "weight calc"
elif val==2:
x = self.c.convert1(var)#do a conversion
print "distance calc"
elif val==3:
x = self.c.convert1(var)#do a conversion
print "temperature calc"
else:
print "it should never happen, but u can trow an excepion"
x=0 #to avoid a python s.f. as I don't trow/manage exceptions
self.edit2.config(state=NORMAL)#set as normal to be able to edit
self.edit2.delete(0,END)#delete previous content
self.edit2.insert(0,x)#add new content
self.edit2.config(state=DISABLED)#do not allow user input
def createRadio(self,fv,tv,cmdp,mode):#fromvariable,tovariable,commandparam,mode
if self.f3 and self.f4 and self.f5:
self.f3.pack_forget()
self.f4.pack_forget()
self.f5.pack_forget()
#FROM:
self.f3 = Frame(self.root)
lbl = Label(self.f3,text="From:",width=8)
lbl.pack(side=LEFT)
for m_text,m_mode in mode:
b = Radiobutton(self.f3,text=m_text,value=m_mode,variable=fv)
b.pack(side=LEFT)
self.edit1 = Entry(self.f3,width=10)
self.edit1.pack(side=LEFT)
self.f3.pack()
#TO:
self.f4 = Frame(self.root)
lbl = Label(self.f4,text="To:",width=8)
lbl.pack(side=LEFT)
for m_text,m_mode in mode:
b = Radiobutton(self.f4,text=m_text,value=m_mode,variable=tv)
b.pack(side=LEFT)
self.edit2 = Entry(self.f4,width=10)
self.edit2.config(state=DISABLED)
self.edit2.pack(side=LEFT)
self.f4.pack()
self.f5 = Frame(self.root)
self.btnCalc = Button(self.f5,text="Calc",command=lambda:self.convert(cmdp),width=10)
self.btnCalc.pack()
self.f5.pack()
def volume(self):
self.createRadio(self.volumef,self.volumet,0,self.VOLUMEMODES)
def weight(self):
self.createRadio(self.weightf,self.weightt,1,self.WEIGHTMODE)
def distance(self):
self.createRadio(self.distancef,self.distancet,2,self.DISTANCEMODES)
def temperature(self):
self.createRadio(self.temperaturef,self.temperaturet,3,self.TEMPERATUREMODE)
Gui()
[编辑]：好的，我修改了一下我的代码，现在它应该有更多的意义;）