下面是使用Python语言比较两个CSV文件的列,并输出匹配列的总和的示例代码:
import csv
def compare_csv_columns(csv_file1, csv_file2, column_name):
# 读取第一个CSV文件的指定列
column1 = []
with open(csv_file1, 'r') as file1:
reader1 = csv.DictReader(file1)
for row in reader1:
column1.append(row[column_name])
# 读取第二个CSV文件的指定列
column2 = []
with open(csv_file2, 'r') as file2:
reader2 = csv.DictReader(file2)
for row in reader2:
column2.append(row[column_name])
# 比较并输出匹配列的总和
total_sum = 0
for value1, value2 in zip(column1, column2):
if value1 == value2:
total_sum += int(value1)
return total_sum
# 调用示例
csv_file1 = 'file1.csv'
csv_file2 = 'file2.csv'
column_name = 'column_name'
total = compare_csv_columns(csv_file1, csv_file2, column_name)
print('Total sum:', total)
请将示例代码中的csv_file1
和csv_file2
替换为你实际使用的CSV文件路径,column_name
替换为你想要比较的列的名称。代码会读取指定列的值,比较两个CSV文件的相应行的值,如果匹配则将其转换为整数并累加到总和中。最后,输出匹配列的总和。