modified:   vik_learning_ios/vik_learning_ios.xcodeproj/project.xcworkspace/xcuserdata/yanglijuan.xcuserdatad/UserInterfaceState.xcuserstate
	modified:   vik_learning_ios/vik_learning_ios.xcodeproj/xcuserdata/yanglijuan.xcuserdatad/xcdebugger/Breakpoints.xcbkptlist
	modified:   vik_learning_ios/vik_learning_ios/Helper/Tools/Tools.h
	modified:   vik_learning_ios/vik_learning_ios/Helper/Tools/Tools.m
	modified:   vik_learning_ios/vik_learning_iosTests/vik_learning_iosTests.m