出现这种提示Assets/ParticleAndAnimation.cs(24,25): error CS0246: The type or namespace name `DelayPlay' could not be found. Are you missing a using directive or an assembly reference?怎么破
出现这种提示Assets/ParticleAndAnimation.cs(24,25): error CS0246: The type or namespace name `DelayPlay' could not be found. Are you missing a using directive or an assembly reference?怎么破