使用phplib7.2中的Template处理BLOCK多重嵌套_PHP
读者要求：了解PHP4 的模板概念
现在大部分模板类中都提供block功能,block用来处理不确定个数的HTML 元素，当出现多层不可定的元素，就会用到block的嵌套，对于block嵌套的用法，经过多次测试还是有需要注意的地方，下面用一个例子说明block嵌套的一种处理方法。
1、我们先来看一下例子要达到的效果（图一）：
2、模板文件test.htm
模板文件就是静态的页，可以用你喜欢的网页编辑器编制他的外观
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