重置Pandas DataFrame、Python中的标签

import pandas as pd

# 创建一个示例DataFrame
data = {'Name': ['Tom', 'Nick', 'John', 'Alice'],
        'Age': [28, 32, 25, 29],
        'City': ['New York', 'Paris', 'London', 'Tokyo']}
df = pd.DataFrame(data)

# 输出原始DataFrame
print("原始DataFrame:")
print(df)

# 重置索引
df_reset = df.reset_index()

# 输出重置索引后的DataFrame
print("\n重置索引后的DataFrame:")
print(df_reset)

原始DataFrame:
   Name  Age      City
0   Tom   28  New York
1  Nick   32     Paris
2  John   25    London
3 Alice   29     Tokyo

重置索引后的DataFrame:
   index   Name  Age      City
0      0    Tom   28  New York
1      1   Nick   32     Paris
2      2   John   25    London
3      3  Alice   29     Tokyo