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]
\ No newline at end of file
+num_list = [1, 3, 5, 8, 11, 15, 17, 18, 20, 21]
+ww1=0
+ww2=9
+num=15
+wwe=(ww2+ww1)//2
+ww3=num_list[wwe]
+if wwe==num:
+    print("sb")
+elif wwe<num:
+    ww3=wwe+1
+else:
+    ww2=wwe -1
\ No newline at end of file