When using a coded solution like NUnit, unit testing artifacts must be kept up to date manually.
当使用需要编码的解决方案时，如 NUnit，单元测试工件需要手动地与日期保持同步。
To be useful, a toString implementation needs to be kept up to date as fields are added and removed from the class, and I find this step too much trouble to be worthwhile in general.
为了更有用些，当从类中添加或删除字段时，toString实现需要保持最新。而我发现总的来说这一步太麻烦而不值得实现。
So here is a list of those published by staff at The Economist Group, and by freelance writers, during 2006. The list will be kept up to date here (which also has details of all staff books in print).
现在谨列出2006年由《经济学人》集团及其自由撰稿人出版发行的书籍，并实时更新(同时包括集团成员书籍的印刷出版详情)。
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