用python写一个程序,要求如下:In the code cell below, complete function list2table take the parameter s which is a string of HTML as input and return a string. list2table extracts the data from all ordered lists in s and converts each of them to a table. The data table in each item is seperated by comma.
时间: 2023-06-13 08:08:30 浏览: 253
好的,以下是代码实现:
```python
from bs4 import BeautifulSoup
def list2table(s):
soup = BeautifulSoup(s, 'html.parser')
ordered_lists = soup.find_all('ol')
result = ''
for ordered_list in ordered_lists:
items = ordered_list.find_all('li')
result += '<table>\n'
for item in items:
result += '<tr><td>' + '</td><td>'.join(item.text.split(',')) + '</td></tr>\n'
result += '</table>\n'
return result
```
使用BeautifulSoup库解析HTML代码,找到所有有序列表(ordered list)的标签,然后遍历每一个列表中的项(item),将其中的文本以逗号为分隔符分割成多个单元格,再将它们包装在HTML的`<tr>`和`<td>`标签中形成表格。最后将所有的表格串联起来返回即可。
相关问题
用python写一个函数,要求如下: In the code cell below, complete function tableRowCounter take the parameter s which is a string of HTML as input and returns the number of rows in the first table of s. The row that contains the table header should not be counted.th中的tr不参与计算
下面是代码实现:
```python
from bs4 import BeautifulSoup
def tableRowCounter(s):
soup = BeautifulSoup(s, 'html.parser')
table = soup.find('table')
rows = table.find_all('tr')
# 排除表头
if rows[0].find('th'):
rows = rows[1:]
return len(rows)
```
解释:
首先,我们使用 BeautifulSoup 库将输入的 HTML 字符串转换为 BeautifulSoup 对象。然后,我们使用 find 方法找到第一个 table 标签,并使用 find_all 方法找到其中的所有行 tr 标签。由于题目要求不计算表头,我们需要检查第一行是否包含 th 标签,如果包含则从 rows 数组中排除它。最后,我们返回剩余行的数量。
In the code cell below, complete function tableRowCounter take the parameter s which is a string of HTML as input and returns the number of rows in the first table of s. The row that contains the table header should not be counted.
Here's the code for the function:
```python
from bs4 import BeautifulSoup
def tableRowCounter(s):
soup = BeautifulSoup(s, 'html.parser')
table = soup.find('table')
rows = table.find_all('tr')
# Ignore the first row if it contains th tags
if rows[0].find('th'):
rows = rows[1:]
return len(rows)
```
Explanation:
1. We first import the BeautifulSoup library to parse the HTML string.
2. We create a BeautifulSoup object called soup from the input string s using the 'html.parser' parser.
3. We find the first table element in the HTML using the `find()` method of the soup object.
4. We find all the rows in the table using the `find_all()` method of the table object.
5. If the first row of the table contains th tags (i.e., it is a table header row), we ignore it by slicing the rows list.
6. Finally, we return the length of the remaining rows list as the number of rows in the table (excluding the header row).
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