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<!DOCTYPE html> <html> <head> <style> table, td { border: 1px solid black; border-collapse: separate; } </style> </head> <body> <table id="myTable" style="empty-cells:hide;"> <tr> <td>January</td> <td>$100</td> </tr> <tr> <td>February</td> <td></td> </tr> </table> <br> <button type="button" onclick="myFunction()">返回 emptyCells 属性</button> <script> function myFunction() { alert(document.getElementById("myTable").style.emptyCells); } </script> </body> </html>