摘要： List<string> names = new List<string>() { "John", "Anna", "Monica" }; var result = String.Join(", ", names.ToArray()); 阅读全文

摘要： https://stackoverflow.com/questions/14007405/how-create-a-new-deep-copy-clone-of-a-listt 1. copy list of object You need to create new Book objects th 阅读全文

摘要： https://segmentfault.com/a/1190000007748862 1. git log 查看要合并的是哪几个commit 2. git rebase -i HEAD~n 合并n个commit 3. 执行rebase命令之后，console会出现如下几行： 可以把pick改成s 阅读全文