auto save

my_search.py

@@ -7,3 +7,15 @@ 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:
+        z=(d+x)//2
+        guess=num_list[z]
+        if num>guess:
+            x=z+1
+        elif num<guess:
+            d=z-1
+        elif num==guess:
+            print('找到了')
+            break
+    else:
+        print('找不到')