变量递增: 关于phpcms2008 内部递增标变量 $n 的注意事项
1.在phpcms2008中，有一个递增的内部变量 $n,它是从1开始逐渐递增的，如果{$n}则表示具体的值。
2.当它和 {if ...}...{else}...{/if} 语句配合使用时，需要注意在表达式中获取$n的具体的值的时候要使用，这样可以避免的ie浏览器中出现问题。
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