save project

func.py

@@ -6,6 +6,12 @@ def li():
         if unit== 'q':
             break
         else:
-            total.append(unit)
+            try:
+               unit=int(unit)
+            except:
+                print("输入错误，请重新输入一个数字")
+            else:
+                total.append(unit)
+            print("-"*30)
     print(total)
-li()
\ No newline at end of file
+li()    
\ No newline at end of file