save project

func.py

+def bendan():
+    total=[]
+    while True:
+        print("-"*50)
+        unit = input("请输入：")
+        if unit == 'q':
+            break
+        else:
+            try:
+                unit=float(unit)
+            except:
+                print("� � �")
+            else:
+                total.append(unit)
+    return total
+a=bendan()
+print(sum(a))
+