auto save

func.py

@@ -5,6 +5,12 @@ def u():
         if unit== 'q':
         if unit== 'q':
             break
             break
         else:
         else:
+            try: 
+                unit=int(unit)
+            except:
+                print("请输入数字。")
+            else:
                 total.append(unit)
                 total.append(unit)
+            print("_"*30)
     print(total)
     print(total)
 u()
 u()
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