如何在pandas中基于多个条件选择每行一列

import pandas as pd

# 创建一个示例DataFrame
data = {'Name': ['Alice', 'Bob', 'Charlie', 'David'],
        'Age': [25, 30, 35, 40],
        'City': ['New York', 'London', 'Paris', 'Tokyo'],
        'Salary': [5000, 6000, 7000, 8000]}

df = pd.DataFrame(data)

# 基于多个条件选择每行一列
condition1 = df['Age'] > 30  # 年龄大于30
condition2 = df['Salary'] < 7000  # 薪水小于7000

selected_columns = ['Name', 'City']  # 选择的列

result = df.loc[condition1 & condition2, selected_columns]

print(result)

     Name    City
2  Charlie   Paris