csv文件行中每列的Python唯一值

import csv

def get_unique_values(csv_file):
    unique_values = {}
    
    with open(csv_file, 'r') as file:
        reader = csv.reader(file)
        header = next(reader)  # 获取表头
        
        # 初始化每一列的唯一值列表
        for column in header:
            unique_values[column] = set()
        
        # 遍历每一行，提取每列的值
        for row in reader:
            for i, value in enumerate(row):
                column = header[i]
                unique_values[column].add(value)
    
    # 输出每一列的唯一值
    for column, values in unique_values.items():
        print(f"列名：{column}")
        print(f"唯一值：{values}")
        print()