是否可以在一个标题下创建一个包含多列的网格?
+------------------------+------------------------+ | 第 1 栏 | 第 2,3,4 栏 | +------------------------+------------------------+ | | | | | +------------------------+------------------------+ | | | | | +------------------------+------------------------+ | | | | | +------------------------------------------------+
尝试了列标题分组,但无法隐藏子列。它看起来像
+------------------------+------------------------+ | 第 1 栏 | 第 2,3,4 栏 | + +------------------------+ | | | | | +------------------------+------------------------+ | | | | | +------------------------+------------------------+ | | | | | +------------------------------------------------+