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]
+l=0
+h=9
+m=(l+h)//2
+while True:
+    if num_list[m]==20:
+        print('找到')
+    elif m<20:
+        l=m+1
+    else:
+        h=m-1
+    if l>h:
+        print('没找到')
+    else:
+        print(m)
\ No newline at end of file