• 2021-04-14 问题

    有下列代码,请分析并判定执行结果为( )。 html_doc = """ <html><head><title>The Dormouse's story</title></head> <body> <p class="title"><b>The Dormouse's story</b></p> <p class="story">Once upon a time there were three little sisters; and their names were <a href="http://example.com/elsie" class="sister" id="link1">Elsie</a>, <a href="http://example.com/lacie" class="sister" id="link2">Lacie</a> and <a href="http://example.com/tillie" class="sister" id="link3">Tillie</a>; and they lived at the bottom of a well.</p> <p class="story">...</p> """ from bs4 import BeautifulSoup soup = BeautifulSoup(html_doc) print(soup.find_all('a'))

    有下列代码,请分析并判定执行结果为( )。 html_doc = """ <html><head><title>The Dormouse's story</title></head> <body> <p class="title"><b>The Dormouse's story</b></p> <p class="story">Once upon a time there were three little sisters; and their names were <a href="http://example.com/elsie" class="sister" id="link1">Elsie</a>, <a href="http://example.com/lacie" class="sister" id="link2">Lacie</a> and <a href="http://example.com/tillie" class="sister" id="link3">Tillie</a>; and they lived at the bottom of a well.</p> <p class="story">...</p> """ from bs4 import BeautifulSoup soup = BeautifulSoup(html_doc) print(soup.find_all('a'))

  • 2021-04-14 问题

    若有下列文档: <html><head><title>The Dormouse's story</title></head> <body> <p class="title"><b>The Dormouse's story</b></p> <p class="story">Once upon a time there were three little sisters; and their names were <a class="sister" href="http://example.com/elsie" id="link1">Elsie</a>, <a class="sister" href="http://example.com/lacie" id="link2">Lacie</a> and <a class="sister" href="http://example.com/tillie" id="link3">Tillie</a>; and they lived at the bottom of a well.</p> <p class="story">...</p> <div><!-- This is a comment --></div> </body> </html> 有一位同学编写了下列代码: bsoup = BeautifulSoup(htmlDoc,'html.parser') result = bsoup.p.string print(result) 此时,输出内容为( )。

    若有下列文档: <html><head><title>The Dormouse's story</title></head> <body> <p class="title"><b>The Dormouse's story</b></p> <p class="story">Once upon a time there were three little sisters; and their names were <a class="sister" href="http://example.com/elsie" id="link1">Elsie</a>, <a class="sister" href="http://example.com/lacie" id="link2">Lacie</a> and <a class="sister" href="http://example.com/tillie" id="link3">Tillie</a>; and they lived at the bottom of a well.</p> <p class="story">...</p> <div><!-- This is a comment --></div> </body> </html> 有一位同学编写了下列代码: bsoup = BeautifulSoup(htmlDoc,'html.parser') result = bsoup.p.string print(result) 此时,输出内容为( )。

  • 2022-07-28 问题

    第一Fiddler银行获得了一套抵押的房屋,并且正以拍卖的形式出售这套房屋。有三个竟标者: Jesse, Sheila 和Elsie. 第一Fiddler 银行不知道这些竞标者的支付意愿,但是根据以前的经验,银行认为他们每个人都有1/3的概率出价700000美元,1/3的概率出价500000美元,还有1/3的概率出价200000美元。第一Fiddler 银行认为这种概率在买主之间是独立分布的。如果第一Fiddler银行通过二级密封价格拍卖的形式出售这套房屋(维克里拍卖),则它得到的期望收益是多少? (选择最接近的答案) ( ) A: 266667美元。 B: 500000美元。 C: 666667美元。 D: 466667美元。 E: 474074美元。

    第一Fiddler银行获得了一套抵押的房屋,并且正以拍卖的形式出售这套房屋。有三个竟标者: Jesse, Sheila 和Elsie. 第一Fiddler 银行不知道这些竞标者的支付意愿,但是根据以前的经验,银行认为他们每个人都有1/3的概率出价700000美元,1/3的概率出价500000美元,还有1/3的概率出价200000美元。第一Fiddler 银行认为这种概率在买主之间是独立分布的。如果第一Fiddler银行通过二级密封价格拍卖的形式出售这套房屋(维克里拍卖),则它得到的期望收益是多少? (选择最接近的答案) ( ) A: 266667美元。 B: 500000美元。 C: 666667美元。 D: 466667美元。 E: 474074美元。

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