Definition and Application example Analysis of Composite pattern in PHP Design pattern

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-All Menu-sub menu1-163#www.163.comsina#www.sina.com-- sub menu2-baidu#www.baidu.com google#www.google.com-- sub menu3-baidu#www.baidu.com google#www.google.com-- sub menu2-baidu#www.baidu.com google#www.google.com

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