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
 
 
-zhaode = 200
+zhaode=int(input("请输入你要找的数:"))
 num_list = [1, 3, 5, 8, 11, 15, 17, 18, 20, 21]
 num_list = [1, 3, 5, 8, 11, 15, 17, 18, 20, 21]
 min = 0
 min = 0
 max =len(num_list)-1
 max =len(num_list)-1
@@ -13,6 +12,4 @@ while min<=max:
     elif caide < zhaode:
     elif caide < zhaode:
         min=mid+1
         min=mid+1
     elif caide > zhaode:
     elif caide > zhaode:
-        man=mid-1
-    else:
-        print("菜就多练，没有这个数",mid)
+        max=mid-1