代码编写错误修正

多写了一个空格，导致编译错误。特此修正
2014-06-29 21:54:32 +08:00
parent ce63ac6968
commit 52d168a67d
1 changed files with 1 additions and 1 deletions
--- a/source/chapter2/21_Protocols.md
+++ b/source/chapter2/21_Protocols.md
@ -108,7 +108,7 @@ class Starship: FullyNamed {
 		self.prefix = prefix
 	}
 	var fullName: String {
-	return (prefix ? prefix ! + " " : " ") + name
+	return (prefix ? prefix! + " " : " ") + name
 	}
 }
 var ncc1701 = Starship(name: "Enterprise", prefix: "USS")