Commit b53ffba8 by BellCodeEditor

auto save

parent 78febb12
Showing with 18 additions and 7 deletions
# 和你的小伙伴讲讲史上有名的三英战吕布的故事。然后完成下面挑战,并说说列表切片是什么,怎么用:
# 省略繁杂情节,刘关张三人一起冲入战场,围攻吕布:
a=['吕布']
b=['袁术','公孙瓒','关羽','张飞','刘备','曹操']
# 什么都没有输出,说明不在列表里
bingo_num = 20 # 要查找的数:20
num_list = [1, 3, 5, 8, 11, 15, 17, 18, 20, 21]
low = 0
high = len(num_list)-1
# 当最低价格索引,小于等于最高价格时
while low <= high:
mid = (low+high) // 2 #取中间价格的索引位置 //取整
guess_num = num_list[mid] # 猜测的数值
if guess_num == bingo_num:
print("找到了,它在列表里的索引是:", mid)
break
elif guess_num < bingo_num:
low = mid+1
elif guess_num > bingo_num:
high = mid-1
\ No newline at end of file
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