save project

my_search.py

-import random
-
+file=open(r'c:\users\cm\DOcuments\lesson13-1\sales_txt','r',encoding='uft-8')
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-alist = []
-for i in range(1, 101):
-    alist.append(i)
-num = random.choice(alist)
-# 请完善二分查找函数binary_search(),查找出num在列表alist里面的索引位置
-
-def binary_search(alist,num):
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