从值为零的嵌套字典中删除项

def remove_zero_items(data):
    if isinstance(data, dict):
        keys_to_delete = []
        for key, value in data.items():
            if value == 0:
                keys_to_delete.append(key)
            elif isinstance(value, dict):
                remove_zero_items(value)
        for key in keys_to_delete:
            del data[key]
    return data

# 示例用法
data = {
    'a': 1,
    'b': 0,
    'c': {
        'd': 2,
        'e': {
            'f': 0,
            'g': 3
        }
    }
}

result = remove_zero_items(data)
print(result)

{'a': 1, 'c': {'d': 2, 'e': {'g': 3}}}