The default rowkey value of the table component should be index for each row

[ANS-HD]

What problem does this feature solve?

table中的rowkey如果没有设置应该设置为每一行的index下标，table在接受后端返回的数据时候，有可能没有值唯一的字段，这就导致了rowkey无法取值的现象

What does the proposed API look like?

rowKey={(r,i)=>i.toString()}

[github-actions]

You may look for issues:

1. 68% Allow for the order of buttons in default footer for the Modal component to be configurable #37023
2. 54% On expand Row Table "Warning: Each child in a list should have a unique "key" prop." #37260
3. 54% Each record in table should have a unique key prop,or set rowKey to an unique primary key. #7623

_{🤖 By issues-similarity-analysis}

[afc163]

Table 列表数据需要唯一的 key，否则不应该用 Table 来展现。如果服务端未返回可以自行前端加上 index，但还是建议和后端讨论一下，数据不可能没主键的。