save project

binary_search.py

 # 使用二分查找法，找出9和20在列表里面的索引
 num_list = [1, 3, 5, 8, 11, 15, 17, 18, 20, 21]
+
+mid=(low+high)//2
+if mid=sum:
+    print("找到了")
+elif mid<sum:
+    low=mid+1
+else:
+    high=mid-1
+if high<low:
+    print("没有您要找的数")            
\ No newline at end of file