latex 表格每行设置不同字体

Each cell of a table is set in a box, so that a change of font style (or whatever) only lasts to the end of the cell. If one has a many-celled table, or a long one which needs lots of rows emphasising, putting a font style change command in every cell will be impossibly tedious.

With the array package, you can define column modifiers which will change the font style for a whole column. However, with a bit of subtlety, one can make such modifiers affect rows rather than columns. So, we set things up by:

usepackage{array}

ewcolumntype{$}{>{globalletcurrentrowstyle
elax}}

ewcolumntype{^}{>{currentrowstyle}}

ewcommand{
owstyle}[1]{gdefcurrentrowstyle{#1}%
  #1ignorespaces
}

Now, we put ‘$’ before the first column specifier; and we put ‘^ ’ before the modifiers of subsequent ones. We then use  owstyle at the start of each row we want to modify:

egin{tabular}{|$l|^l|^l|}   hline
  
owstyle{fseries}
  Heading & Big and & Bold \ hline
  Meek & mild & entry      \
  Meek & mild & entry      \
  
owstyle{itshape}
  Strange & and & italic   \
  Meek & mild & entry      \ hline
end{tabular}

The array package works with several other tabular-like environments from other packages (for example longtable), but unfortunately this trick won’t always work.