StackOverflow 文档 HTML 教程 咏叹调 rolegridcell rolegridcell Created: November-22, 2018 网格或树格中的单元格。 <table role="grid"> <thead> <!-- etc --> </thead> <tbody> <tr> <td role="gridcell">17</td> <td role="gridcell">64</td> <td role="gridcell">18</td> </tr> </tbody> <table> rolegrouprolegrid