根据用户输入的匹配项对csv文件的值求和

import csv

def sum_csv_values(csv_file, match_column, match_value, sum_column):
    total_sum = 0

    with open(csv_file, 'r') as file:
        reader = csv.DictReader(file)
        for row in reader:
            if row[match_column] == match_value:
                total_sum += float(row[sum_column])

    return total_sum

# 示例用法
csv_file = 'data.csv'
match_column = 'Category'
match_value = 'A'
sum_column = 'Value'

result = sum_csv_values(csv_file, match_column, match_value, sum_column)
print("Sum of values for Category A:", result)

Category,Value
A,10
B,20
A,30
B,40