魔方还原看起来比较复杂，其实也有自己的方法。只要掌握了还原的口诀，就能够把在任何状态下的魔方，恢复成为本来的样子。无论是三阶魔方还是更多阶魔方都是如此，那么魔方七步还原法口诀是什么呢?
I am trying to display checkboxes in front of every row in list view. So that after selecting the desired checkboxes user clicks on delete button and we should delete that records.
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