df.to_html使用col_space设置每列的列宽

import pandas as pd

# 创建一个DataFrame对象
data = {'Name': ['Tom', 'Nick', 'John'],
        'Age': [28, 32, 25],
        'City': ['New York', 'Paris', 'London']}
df = pd.DataFrame(data)

# 将DataFrame转换为HTML表格，并设置每列的列宽为100像素
html_table = df.to_html(col_space=100)

# 打印HTML表格
print(html_table)

<table border="1" class="dataframe">
  <thead>
    <tr style="text-align: right;">
      <th></th>
      <th style="min-width: 100px;">Name</th>
      <th style="min-width: 100px;">Age</th>
      <th style="min-width: 100px;">City</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <th>0</th>
      <td>Tom</td>
      <td>28</td>
      <td>New York</td>
    </tr>
    <tr>
      <th>1</th>
      <td>Nick</td>
      <td>32</td>
      <td>Paris</td>
    </tr>
    <tr>
      <th>2</th>
      <td>John</td>
      <td>25</td>
      <td>London</td>
    </tr>
  </tbody>
</table>