def handler_yaml_list(data_dict): """处理yaml文件测试用例请求参数为list情况，以数组形式""" for key, value in data_dict.items(): if isinstance(value, list): value_lst = ','.join(value).split(',') data_dict[key] = value_lst return data_dict if __name__ == '__main__': a = '[{"goodsId": "4773158314218656", "goodsSpecId": "4773159127174358", "goodsName": "展会5分钟方便面", "goodsSpecName": "展会5分钟方便面+展会5分钟方便面", "orderQuantity": 1, "storeId": "5295107879530691"}]' b = json.loads(a) print(handler_yaml_list(b)) python报错'list' object has no attribute 'items'

这个错误是因为`b`是一个列表，而不是字典，无法使用`items()`方法。需要将列表中的字典取出来再处理。可以将`handler_yaml_list`函数改成如下形式：

def handler_yaml_list(data_list):
    """处理yaml文件测试用例请求参数为list情况，以数组形式"""
    for data_dict in data_list:
        for key, value in data_dict.items():
            if isinstance(value, list):
                value_lst = ','.join(value).split(',')
                data_dict[key] = value_lst
    return data_list

同时，调用函数时应该传入`b`而不是`json.loads(a)`。完整的代码如下：

import json

def handler_yaml_list(data_list):
    """处理yaml文件测试用例请求参数为list情况，以数组形式"""
    for data_dict in data_list:
        for key, value in data_dict.items():
            if isinstance(value, list):
                value_lst = ','.join(value).split(',')
                data_dict[key] = value_lst
    return data_list

if __name__ == '__main__':
    a = '[{"goodsId": "4773158314218656", "goodsSpecId": "4773159127174358", "goodsName": "展会5分钟方便面", "goodsSpecName": "展会5分钟方便面+展会5分钟方便面", "orderQuantity": 1, "storeId": "5295107879530691"}]'
    b = json.loads(a)
    print(handler_yaml_list(b))