{if $smarty.section.outer.index is odd by 2}

test.tpl

 

1 < table border =1 >
2 {section name=outer loop=$FirstName}
3 {if $smarty.section.outer.index is odd by 3}
4 < tr bgcolor ="#EFEFEF" >< td >
5 {$smarty.section.outer.index}-{$smarty.section.outer.rownum} . {$FirstName[outer]} {$LastName[outer]}
6 </ td ></ tr >
7 {else}
8 < tr bgcolor ="#FFFFFFF" >< td >
9 {$smarty.section.outer.index}-{$smarty.section.outer.rownum} * {$FirstName[outer]} {$LastName[outer]}
10 </ td ></ tr >
11 {/if}
12 {sectionelse}
13 none
14 {/section}
15
16 </ table >

test.php

 

1 <? php
2
3 require ' lib/Smarty-2.6.11/libs/Smarty.class.php ' ;
4
5 $smarty = new Smarty;
6
7 // $smarty->compile_check = true;
8 //$smarty->debugging = true;
9
10 //$smarty->assign("hello","byby");
11 $smarty -> assign( " FirstName " , array ( " John " , " Mary " , " James " , " Henry " , " Tom " , " Hello " ));
12
13 $smarty -> display( ' test.tpl ' );
14
15 ?>

index
index用来显示当前循环的指针,从0开始.
index_prev
用来显示前一次循环的指针,从-1开始
index_next
用来显示后一次循环的指针.

{if $smarty.section.outer.index is odd by 1}

0 -1 * John

1 -2 . Mary

2 -3 * James

3 -4 . Henry

4 -5 * Tom

5 -6 . Hello

0/1=0  非奇非偶，执行else项

1/1=1  奇数，执行if项

2/1=2  偶数，执行else项

3/1=3  奇数，执行if项

4/1=4 偶数，执行else项

5/1=5 奇数，执行if项

{if $smarty.section.outer.index is odd by 2}

0 -1 * John

1 -2 * Mary

2 -3 . James

3 -4 . Henry

4 -5 * Tom

5 -6 * Hello

0/2=0 非奇非偶，执行else项

1/2=0 非奇非偶，执行else项

2/2=1 奇数，执行if项

3/2=1 奇数，执行if项

4/2=2 偶数，执行else项

5/2=2 奇数，执行else项

{if $smarty.section.outer.index is odd by 3}

0 -1 * John

1 -2 * Mary

2 -3 * James

3 -4 . Henry

4 -5 . Tom

5 -6 . Hello

 

0/3=0 非奇非偶，执行else项

1/3=0 非奇非偶，执行else项

2/3=0  非奇非偶，执行else项

3/3=1 奇数，执行if项

4/3=1 奇数，执行if项

5/3=1 奇数，执行else项