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
 # 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]
+
\ No newline at end of file
+num_list = [1, 3, 5, 8, 11, 15, 17, 18, 20, 21]
+low=0
+high=9
+num=6
+
+while True:
+    
+    a=(low+high)//2
+    b=num_list[a]
+    if a ==num:
+        print('找到了')
+        print(b)
+        exit()
+    elif a<num:
+        low=a+1
+    else:
+        high=a-1
\ No newline at end of file