对于Windows系统需要在读取文件时加encoding='utf-8'

[mayanbo1994]

def save_data(frined_list):
out_file_name = "./data/friends.json"
with open(out_file_name, 'w',encoding='utf-8') as json_file:
json_file.write(json.dumps(frined_list,ensure_ascii=False))

if name == 'main':

in_file_name = './data/friends.json'
with open(in_file_name,encoding='utf-8') as f:
    friends = json.load(f)