save project

my_search.py

@@ -7,9 +7,12 @@ 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):
-        while d>x:
+    x=0
+    d=len(alist)-1
+    while d>x:
         z=(d+x)//2
-        guess=num_list[z]
+        guess=alist[z]
+
         if num>guess:
             x=z+1
         elif num<guess:
@@ -19,3 +22,5 @@ def binary_search(alist,num):
             break
     else:
         print('找不到')
+
+binary_search(alist,num)
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