删除无用的项目

Expressions-Variables-Constants.playground/playground.xcworkspace/contents.xcworkspacedata

@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<Workspace
-   version = "1.0">
-   <FileRef
-      location = "group:">
-   </FileRef>
-</Workspace>

Expressions-Variables-Constants.playground/xcuserdata/jiulinxiri.xcuserdatad/xcschemes/xcschememanagement.plist

@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>Expressions-Variables-Constants (Playground).xcscheme</key>
-		<dict>
-			<key>isShown</key>
-			<false/>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>