从字符串开始处截取某长度的字符.默认是80个.
你也可以指定第二个参数作为追加在截取字符串后面的文本字串.该追加字串被计算在截取长度中。
默认情况下,smarty会截取到一个词的末尾。
如果你想要精确的截取多少个字符,把第三个参数改为"true"
index.php:$smarty = new Smarty;$smarty->assign('articleTitle', 'Two Sisters Reunite after Eighteen Years at Checkout Counter.');$smarty->display('index.html');index.html:{$articleTitle}{$articleTitle|truncate}{$articleTitle|truncate:30}{$articleTitle|truncate:30:""}{$articleTitle|truncate:30:"---"}{$articleTitle|truncate:30:"":true}{$articleTitle|truncate:30:"...":true}输出结果：Two Sisters Reunite after Eighteen Years at Checkout Counter.Two Sisters Reunite after Eighteen Years at Checkout Counter.Two Sisters Reunite after...Two Sisters Reunite afterTwo Sisters Reunite after---Two Sisters Reunite after EighTwo Sisters Reunite after E... 