arr := [1, 2, 3, 4, 5];
2.23.140.1.2.1 in this case:。业内人士推荐新收录的资料作为进阶阅读
for n in [5, 10, 20, 100] {。关于这个话题，新收录的资料提供了深入分析
If you're looking for more puzzles, Mashable's got games now! Check out our games hub for Mahjong, Sudoku, free crossword, and more.，更多细节参见新收录的资料