-1
所以我目前正在製作GUI計算器的過程中,但我不確定如何編寫將執行計算器操作的代碼。現在我現在已經設置了窗口,輸入框和計算器按鈕,但是目前他們中沒有一個實際做任何事情。Python Tkinter GUI計算器
我只是困惑於這些按鍵的代碼代表,所以我不知道如何寫的代碼塊,將能夠在這些按鈕輸入來讀取和執行加法,減法,等等
這裏是我到目前爲止的代碼
class Calculator(Frame):
def __init__(self,master):
Frame.__init__(self,master)
self.grid()
self.dataEnt = Entry(self)
self.dataEnt.grid(row = 0, column = 1, columnspan = 4)
labels =[['AC','%','/'],
['7','8','9','*'],
['4','5','6','-'],
['1','2','3','+'],
['0','.','=']]
label = Button(self,relief = RAISED, padx = 10, text = labels[0][0]) #AC
label.grid(row = 1, column = 0, columnspan = 2)
label = Button(self,relief = RAISED, padx = 10, text = labels[0][1]) # %
label.grid(row = 1, column = 3)
label = Button(self,relief = RAISED, padx = 10, text = labels[0][2]) #/
label.grid(row = 1, column = 4)
for r in range(1,4):
for c in range(4):
#create label for row r and column c
label = Button(self,relief = RAISED,
padx = 10,
text = labels[r][c]) # 789* 456- 123+
# place label in row r and column c
label.grid(row = r+1, column = c+1)
label = Button(self,relief = RAISED, padx = 10, text = labels[4][0]) #0
label.grid(row = 5, column = 0, columnspan = 2)
label = Button(self,relief = RAISED, padx = 10, text = labels[4][1]) # .
label.grid(row = 5, column = 3)
label = Button(self,relief = RAISED, padx = 10, text = labels[4][2]) # =
label.grid(row = 5, column = 4)
def operations(self,num):
def main():
root = Tk()
root.title('Calculator')
obj = Calculator(root)
root.mainloop()
and here is what the calculator looks like so far
我的猜測是,我需要以某種方式能夠讀取輸入的字符串,然後有蟒蛇評估該字符串作爲數學表達式,但我不確定w去解決它。
感謝您的幫助!
這很好,特德。我並不期待簡單的複製和粘貼。感謝您提供有關此問題的見解! – NuktukHotS