Python如何将代码实现到GUI

Question

我对在python中制作GUI非常陌生，我到处都找过，但找不到我想要的东西。我只想有一个程序，用户输入一个半径，然后程序在点击或输入按钮的帮助下打印出标签中该半径的区域。提前感谢：）

import Tkinter, math
class calc_tk(Tkinter.Tk):
def __init__(self,parent):
    Tkinter.Tk.__init__(self,parent)
    self.parent = parent
    self.initialize()
def initialize(self):
    self.grid()
    self.entryVariable = Tkinter.DoubleVar()
    self.entry = Tkinter.Entry(self,textvariable=self.entryVariable)
    self.entry.grid(column=0,row=0,sticky='EW')
    self.entry.bind("<Return>", self.OnPressEnter)
    self.entryVariable.set(u"Radius")
    button = Tkinter.Button(self,text=u"Click to convert",command=self.OnButtonClick)
    button.grid(column=1,row=0)
    self.labelVariable = Tkinter.StringVar()
    label = Tkinter.Label(self,textvariable=self.labelVariable,anchor="w",fg="white",bg="gray")
    label.grid(column=0,row=1,columnspan=2,sticky='EW')
    self.labelVariable.set(u"Please enter a radius.")
    self.grid_columnconfigure(0,weight=1)
    self.resizable(True,False)
    self.update()
    self.geometry(self.geometry())       
    self.entry.focus_set()
    self.entry.selection_range(0, Tkinter.END)
def OnButtonClick(self):
    self.labelVariable.set( self.convertVariable.get() )
    self.entry.focus_set()
    self.entry.selection_range(0, Tkinter.END)
def OnPressEnter(self,event):
    self.converter()
    self.labelVariable.set( self.convertVariable.get() )
    self.entry.focus_set()
    self.entry.selection_range(0, Tkinter.END)
def converter(self):
    self.convertVariable(math.pi * self.entryVariable.get()**2)
if __name__ == "__main__":
app = calc_tk(None)
app.title('Radius Converter')
app.mainloop()

Answer 1

我已经稍微修改了您的代码。现在，代码将显示您提到的标签上的区域。检查代码。如果我错了，请告诉我。

import Tkinter, math
class calc_tk(Tkinter.Tk):
    def __init__(self,parent):
        Tkinter.Tk.__init__(self,parent)
        self.parent = parent
        self.initialize()
    def initialize(self):
        self.grid()
        self.entryVariable = Tkinter.StringVar()
        self.entry = Tkinter.Entry(self,textvariable=self.entryVariable)
        self.entry.grid(column=0,row=0,sticky='EW')
        self.entry.bind("<Return>", self.OnPressEnter)
        self.entryVariable.set(u"Radius")
        button = Tkinter.Button(self,text=u"Click to convert",command=self.OnButtonClick)
        button.grid(column=1,row=0)
        self.labelVariable = Tkinter.StringVar()
        label = Tkinter.Label(self,textvariable=self.labelVariable,anchor="w",fg="white",bg="gray")
        label.grid(column=0,row=1,columnspan=2,sticky='EW')
        self.labelVariable.set(u"Please enter a radius.")
        self.grid_columnconfigure(0,weight=1)
        self.resizable(True,False)
        self.update()
        self.geometry(self.geometry())       
        self.entry.focus_set()
        self.entry.selection_range(0, Tkinter.END)
    def OnButtonClick(self):
       
        self.labelVariable.set( str(self.converter())+" is the area." )
        self.entry.focus_set()
        self.entry.selection_range(0, Tkinter.END)
    def OnPressEnter(self,event):
        self.labelVariable.set( str(self.converter())+" is the area." )
        self.entry.focus_set()
        self.entry.selection_range(0, Tkinter.END)
    def converter(self):
        print self.entryVariable.get()
        return (math.pi * (float(self.entryVariable.get()) * float(self.entryVariable.get())))
if __name__ == "__main__":
    app = calc_tk(None)
    app.title('Radius Converter')
    app.mainloop()