在.h文件声明
DECLARE_LOG_CATEGORY_EXTERN(MyLog, Log, All);
在.cpp文件声明
DEFINE_LOG_CATEGORY(MyLog)
就可以使用了
Log格式：
Log Message
//"This is a message to yourself during runtime!"
UE_LOG(YourLog,Warning,TEXT("This is a message to yourself during runtime!"));
Log an FString
%s strings are wanted as TCHAR* by Log, so use *FString()
//"MyCharacter's Name is %s"
UE_LOG(YourLog,Warning,TEXT("MyCharacter's Name is %s"), *MyCharacter->GetName() );
Log an Int
//"MyCharacter's Health is %d"
UE_LOG(YourLog,Warning,TEXT("MyCharacter's Health is %d"), MyCharacter->Health );
Log a Float
//"MyCharacter's Health is %f"
UE_LOG(YourLog,Warning,TEXT("MyCharacter's Health is %f"), MyCharacter->Health );
Log an FVector
//"MyCharacter's Location is %s"
UE_LOG(YourLog,Warning,TEXT("MyCharacter's Location is %s"),
*MyCharacter->GetActorLocation().ToString());
Log an FName
//"MyCharacter's FName is %s"
UE_LOG(YourLog,Warning,TEXT("MyCharacter's FName is %s"),
*MyCharacter->GetFName().ToString());
Log an FString,Int,Float
//"%s has health %d, which is %f percent of total health"
UE_LOG(YourLog,Warning,TEXT("%s has health %d, which is %f percent of total health"),
*MyCharacter->GetName(), MyCharacter->Health, MyCharacter->HealthPercent);
