更新 'taschenrechner.py'

taschenrechner.py

@@ -1,5 +1,52 @@
 from Tkinter import *
+from tkMessageBox import showinfo
+#----------------------------------
 
+def response(event):
+    I = event.widget['text']
+    
+    texts = UPN.text.get(1.0,END+'-1c')
+    #print texts
+
+    if I == 'DEL':
+        UPN.text.delete(INSERT + '-1c',INSERT)
+    elif I == 'Clear':
+        UPN.text.delete(1.0,END)
+    elif I == 'Enter':
+        UPN.text.insert(INSERT,'\n')
+    elif I == '=':
+		try:
+        	s = toList(texts)
+        	#print s
+        	UPN.text.insert(END,'\n=\n')
+        	UPN.text.insert(END,f(s))
+        	UPN.text.see('end')
+        except:
+          	showinfo('Achtung:', 'Falsche Eingabe,bitte ueberpruefen Sie die Eingabe!')
+    else:
+        UPN.text.insert(INSERT,I)
+def UPN():    
+    root.title('umgekehrte polnische Notation')
+    root.geometry('310x440+200+100')
+
+    UI = LabelFrame(root)
+    UI.place(x = 1,y = 1,width = 308,height = 124)
+
+    UPN.text = Text(UI)
+    UPN.text.place(x=1,y=1,width=300,height=116)
+
+    Li=[['7','8','9','+','DEL'],
+        ['4','5','6','-','Enter'],
+        ['1','2','3','*','='],
+        ['0','00','.','/','Clear']]
+ 
+    for i in range(len(Li[0])):
+        for j in range(len(Li)):
+            bt = Button(root)
+            bt.place(x=i*60+10,y=120+(j+1)*60,width=50,height=50)
+            bt['text'] = Li[j][i]
+            bt.bind('<Button-1>',response,add=(root,))
+#----------------------------------
 def toList(text):
 	a = text.splitlines()
     L = []
@@ -60,54 +107,13 @@ def Grundrechenarten(c,a,d):
         result = int(result)
 
     return result
-
-#-----------------------------
-
-def response(event):
-    I = event.widget['text']
-    
-    texts = UPN.text.get(1.0,END+'-1c')
-    #print texts
-
-    if I == 'DEL':
-        UPN.text.delete(INSERT + '-1c',INSERT)
-    elif I == 'Clear':
-        UPN.text.delete(1.0,END)
-    elif I == 'Enter':
-        UPN.text.insert(INSERT,'\n')
-    elif I == '=':
-        s = toList(texts)
-        #print s
-        UPN.text.insert(END,'\n=\n')
-        UPN.text.insert(END,f(s))
-        UPN.text.see('end')
-def UPN():    
-    root.title('umgekehrte polnische Notation')
-    root.geometry('400x500+200+100')
-
-    UI = LabelFrame(root)
-    UI.place(x = 1,y = 1,width = 398,height = 124)
-
-    UPN.text = Text(UI)
-    UPN.text.place(x=1,y=1,width=390,height=116)
-
-    Li=[['7','8','9','+','DEL'],
-        ['4','5','6','-','Enter'],
-        ['1','2','3','*','='],
-        ['0','00','.','/','Clear']]
- 
-    for i in range(len(Li[0])):
-        for j in range(len(Li)):
-            bt = Button(root)
-            bt.place(x=(i+1)*60,y=120+(j+1)*60,width=50,height=50)
-            bt['text'] = Li[j][i]
-            bt.bind('<Button-1>',response,add=(root,))
-
+#----------------------------------
 def main():
     UPN()
     root.mainloop()
 
 if __name__ == '__main__':
+    print 'Dieser Taschenrechner ist mit UPN-Eingabe moeglich.'
     root = Tk()
     main()