First, decide whether to write the filter from scratch or copy and modify a filter that already exists and is similar to what you want to accomplish.

首先，确定是从头开始编写过滤器，还是复制并修改已存在的类似过滤器。

youdao

First, decide whether to write the filter from scratch or copy and modify a filter that already exists and is similar to what you want to accomplish.

首先，确定是从头开始编写过滤器，还是复制并修改已存在的类似过滤器。

youdao