Update d3_exercice_calculator.py

Author: zoushui

19100401/zoushui/d3_exercice_calculator.py

@@ -30,5 +30,4 @@ def divide(x,y):
   elif choise == '4':
      print(num1,"/",num2,"=", divide(num1,num2))
   else:
-     print("你输入的有误，请重新输入")
-     
+     print("你输入的有误，请重新输入")