auto save

func.py

+def foods():
+    total = []
+    while True:
+        try:
+            unit = input("请输入：")
+            if unit== 'q':
+                break
+            unit = int(unit)
+        except:
+            print("错误")
+        else:
+            total.append(unit)
+    return total 
+
+total = foods()
+print(total)
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