从csv文件中读取特定值

id,name,age,city
1,Alice,30,New York
2,Bob,25,Los Angeles
3,Charlie,35,Chicago

import csv

def find_person_by_age(csv_file, target_age):
    with open(csv_file, mode='r', newline='', encoding='utf-8') as file:
        reader = csv.DictReader(file)
        for row in reader:
            if int(row['age']) == target_age:
                return row
    return None

# 使用示例
result = find_person_by_age('data.csv', 30)
if result:
    print(f"找到匹配的人: {result}")
else:
    print("没有找到匹配的人")

import csv

def find_person_by_age(csv_file, target_age):
    with open(csv_file, mode='r', newline='', encoding='utf-8') as file:
        reader = csv.DictReader(file, delimiter='\t')
        for row in reader:
            age = row.get('age')
            if age and int(age) == target_age:
                return row
    return None

# 使用示例
result = find_person_by_age('data.tsv', 30)
if result:
    print(f"找到匹配的人: {result}")
else:
    print("没有找到匹配的人")