Primavera P6 Professional : Since I came into contact with this software, I am falling love with it. Not only does it support naming with space input and have an interface design that appeals to me, but more importantly, it has now become my new major. It's not programming that is new, it makes me panic sometimes. I panic not because I hate IT, on the contrary, because I already feel the charm of IT. So where does panic come from? Maybe I don't know much about crossings, and I'm troubled by lines that don't seem to matter.