Update 03Types.md
Merge pull request #1 from CocoaChina-editors/master

更新翻译
Merge pull request #2 from CocoaChina-editors/master

合并更新
Update 03Types.md
Merge pull request #3 from CocoaChina-editors/master

合并更新
翻译初稿

第一次翻译，虚心接受建议
Merge pull request #53 from Lin-H/master

翻译初稿