I place a video on youtube,but I find viewer of this video is 0 after many days,how to quickly get more viewers for a video?

You can use tags and describe categorise the video as this will allow people to find it if it is relevant to them. Choose good tags to help promote your video this will attract viewers.

Well, first thing is to post a link of your video here! Do you know how to do this?

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.