输出报错runcell(0, '/Users/mac/??????.py') Traceback (most recent call last): File ~/anaconda3/lib/python3.10/site-packages/spyder_kernels/py3compat.py:356 in compat_exec exec(code, globals, locals) File ~/??????.py:36 df2=df2.sort_values(by='??/?',ascending=False) File ~/anaconda3/lib/python3.10/site-packages/pandas/util/_decorators.py:331 in wrapper return func(*args, **kwargs) File ~/anaconda3/lib/python3.10/site-packages/pandas/core/frame.py:6912 in sort_values k = self._get_label_or_level_values(by, axis=axis) File ~/anaconda3/lib/python3.10/site-packages/pandas/core/generic.py:1850 in _get_label_or_level_values raise KeyError(key) KeyError: ‘人数/万’,重新修改一下这个程序
时间: 2023-10-06 15:13:09 浏览: 116
根据错误信息看来,出现了`KeyError`异常,即没有找到名为`'人数/万'`的列。你可以检查一下DataFrame是否包含该列,或者该列名是否拼写正确。另外,为了避免出现中文乱码问题,可以在文件开头添加如下代码,设置编码为UTF-8:
```python
# -*- coding: utf-8 -*-
```
根据你提供的代码,修改后的程序如下:
```python
# -*- coding: utf-8 -*-
import requests
from bs4 import BeautifulSoup
import pandas as pd
url = 'https://www.gk100.com/read_16892539.htm'
header = {"User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.5 Safari/605.1.15"}
r = requests.get(url, headers=header)
r.encoding = r.apparent_encoding
soup = BeautifulSoup(r.text, features="lxml")
w1 = soup.find_all("td")
result = w1
df = pd.DataFrame(result)
df1 = df[2:]
for index in df1:
d1 = df1[df1.index%2==0]
d2 = df1[df1.index%2!=0]
d1 = d1.reset_index(drop=True)
d2 = d2.reset_index(drop=True)
df2 = pd.concat([d1,d2], axis=1)
# 排序,按照第二列的元素进行降序排列
df2 = df2.sort_values(by='??/?', ascending=False)
title = ['省份', '人数/万']
df2.columns = title
print(df2)
```
需要注意的是,你的代码中`by='??/?'`的部分中文字符被替换成了问号,可能是文件编码不太兼容,你需要手动修改为正确的列名。