帮胡衍明认领[泛型]
Revert "帮胡衍明认领[泛型]"

This reverts commit aef7b0c7b150ce9817c6638455469d02bf039175.
翻译类和结构体3页
翻译到272页
update
update to page 290
修改了一个错别字，活改成或
update to 277
Merge pull request #33 from zengyun-programmer/master

[类和结构体]翻译到290页