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数据项链接#

¥Data item linking

一个项目是一条数据。节点接收一个或多个项目,对其进行操作,并输出新项目。每个项目都链接回之前的项目。

¥An item is a single piece of data. Nodes receive one or more items, operate on them, and output new items. Each item links back to previous items.

如果你符合以下情况,则需要了解此行为:

¥You need to understand this behavior if you're:

  • 构建一个程序化的节点,利用其输入和输出数据实现复杂的行为。

¥Building a programmatic-style node that implements complex behaviors with its input and output data.

  • 使用代码节点或表达式编辑器访问工作流中先前项的数据。

¥Using the Code node or expressions editor to access data from earlier items in the workflow.

  • 使用代码节点处理具有输入和输出数据的复杂行为。

¥Using the Code node for complex behaviors with input and output data.

本节提供:

¥This section provides:

¥A conceptual overview of Item linking concepts.

¥Information on Item linking for node creators.

  • 支持终端用户使用 使用数据路径 从之前的节点检索项目数据,并在使用代码节点时链接项目。

¥Support for end users who need to Work with the data path to retrieve item data from previous nodes, and link items when using the Code node.

  • 故障排除指南 错误

¥Guidance on troubleshooting Errors.