smarty模板数学运算示例

{ $height=4, $width=5 }
{math equation="x + y" x=$height y=$width}

{ $row_height = 10, $row_width = 20, #col_div# = 2, assigned in template }
{math equation="height  width / division"
   height=$row_height
   width=$row_width
   division=#col_div#}

{ you can use parenthesis }
{math equation="(( x + y ) / z )" x=2 y=10 z=2}

{ you can supply a format parameter in sprintf format }
{math equation="x + y" x=4.4444 y=5.0000 format="%.2f"}