从json文件中删除非ascii控制字符

import json

# 读取json文件
with open('file.json', 'r') as f:
    data = json.load(f)

def remove_non_ascii(data):
    if isinstance(data, dict):
        for key, value in data.items():
            if isinstance(value, str):
                data[key] = ''.join([c for c in value if ord(c) < 128])
            elif isinstance(value, (dict, list)):
                remove_non_ascii(value)
    elif isinstance(data, list):
        for item in data:
            remove_non_ascii(item)

# 删除非ascii控制字符
remove_non_ascii(data)

# 将处理后的数据写回到json文件
with open('file.json', 'w') as f:
    json.dump(data, f)