eq相等ne、neq不相等，gt大于，lt小于gte、ge大于等于lte、le小于等于not非mod求模等...

eq相等   ne、neq不相等&＃xff0c;   gt大于&＃xff0c; lt小于 gte、ge大于等于   lte、le 小于等于   not非   mod求模   is [not] div by是否能被某数整除   is [not] even是否为偶数   is [not] even by $b即($a / $b) % 2 &＃61;&＃61; 0   is [not] odd是否为奇   is not odd by $b即($a / $b) % 2 !&＃61; 0 示例&＃xff1a;

equal/ not equal/ greater than/ less than/ less than or equal/ great than or equal/后面的就不用说了

Smarty 中的 if 语句和 php 中的 if 语句一样灵活易用&＃xff0c;并增加了几个特性以适宜模板引擎. if 必须于 /if 成对出现. 可以使用 else 和 elseif 子句. 可以使用以下条件修饰词&＃xff1a;eq、ne、neq、gt、lt、lte、le、gte、ge、is even、is odd、is not even、is not odd、not、mod、div by、even by、odd by、&＃61;&＃61;、!&＃61;、>、<、<&＃61;、>&＃61;. 使用这些修饰词时必须和变量或常量用空格格开.

Example 7-11. if statements

例 7-11. if 语句演示

{if $name eq "Fred"}

Welcome Sir.

{elseif $name eq "Wilma"}

Welcome Ma&＃39;am.

{else}

Welcome, whatever you are.

{/if}

{* an example with "or" logic *}

{if $name eq "Fred" or $name eq "Wilma"}

...

{/if}

{* same as above *}

{if $name &＃61;&＃61; "Fred" || $name &＃61;&＃61; "Wilma"}

...

{/if}

{* the following syntax will NOT work, conditional qualifiers

must be separated from surrounding elements by spaces *}

{if $name&＃61;&＃61;"Fred" || $name&＃61;&＃61;"Wilma"}

...

{/if}

{* parenthesis are allowed *}

{if ( $amount <0 or $amount > 1000 ) and $volume >&＃61; #minVolAmt#}

...

{/if}

{* you can also embed php function calls *}

{if count($var) gt 0}

...

{/if}

{* test if values are even or odd *}

{if $var is even}

...

{/if}

{if $var is odd}

...

{/if}

{if $var is not odd}

...

{/if}

{* test if var is divisible by 4 *}

{if $var is div by 4}

...

{/if}

{* test if var is even, grouped by two. i.e.,

0&＃61;even, 1&＃61;even, 2&＃61;odd, 3&＃61;odd, 4&＃61;even, 5&＃61;even, etc. *}

{if $var is even by 2}

...

{/if}

{* 0&＃61;even, 1&＃61;even, 2&＃61;even, 3&＃61;odd, 4&＃61;odd, 5&＃61;odd, etc. *}

{if $var is even by 3}

...

{/if}