男人的天堂

Return new MyIterator (this);郦食其道：从豫章上岸吧，然后我们一路在越国行进，两国联姻这样重大的喜事自然该与越国百姓分享才是。Visitor pattern decouples the data structure from the operations acting on the structure, making the operation set relatively free to evolve. Visitor pattern is suitable for systems with relatively stable data structure and easy change of algorithm. Because visitor mode makes it easy to increase algorithm operation. If system data structure objects are easy to change and new data objects are often added, visitor mode is not suitable. The advantage of visitor mode is that it is easy to add operations, because adding operations means adding new visitors. Visitor mode centralizes the relevant behaviors into one visitor object, and its changes do not affect the system data structure. Its disadvantage is that it is difficult to add new data structures. -From Encyclopedia于是，刘氏牵着小葱往大厨房去，小草跟在后边。根本没有留下来确定尹旭具体的生死，而是将这件事交给了周徐两家。林俊杰北京开唱 实力唱功飙唱西洋神曲 -- 林俊杰