基于columnsN中的条件的columnA中的Python DataFrame求和值

import pandas as pd

# 读取DataFrame数据
df = pd.read_csv('data.csv')

# 根据条件筛选行
condition = df['columnN'] > 0
filtered_df = df[condition]

# 对columnA进行求和
sum_value = filtered_df['columnA'].sum()

print("求和值为:", sum_value)