save project

func.py

@@ -5,6 +5,11 @@ def cd():
         if unit== 'q':
         if unit== 'q':
             break
             break
         else:
         else:
+            try:
+                unit=int(unit)
+            except:
+                print('请重新输入一个整数')
+            else:    
                 total.append(unit)
                 total.append(unit)
     print(total)
     print(total)
 cd()
 cd()
\ No newline at end of file