save project

func.py

+def xin_cai():
+    total = []
+    while True:
+        unit= input("请输入：")
+        if unit== 'q':
+            break
+        else:
+            try:
+                unit=float(unit)
+            except:
+                print("请输入一个价格！")
+            else:
+                total.append(unit)
+    return total
+            
+
+print(xin_cai())
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