Second, it allows you to change a document, even remove it, without having your code fail when you proceed to the next document.

其次，它允许您更改文档，甚至删除文档，而您处理下一文档时代码不会失败。

youdao

Second, it allows you to change a document, even remove it, without having your code fail when you proceed to the next document.

其次，它允许您更改文档，甚至删除文档，而您处理下一文档时代码不会失败。

youdao