how many links from one site google accept?

excuse me if my english is not good
if i make 100 link from domain.com to domain.net
do google accept all links?
all of links are back link?

Nobody will know, But it's safe to assume that the more there are the less each will count.

Even if some of them get counted, a usual, Google is not showing the exact number and the sources of the links either.

I don't think this is exactly the case, because if your link showed in group with other good sites it can increase the value of your link.

Hi,
Ya this counting is only G knows. But G purposely does not list all links pointing to a particular page. This is an effort to keep webmasters from manipulating their system. They also only update backlinks on a periodic basis so you may have acquired new backlinks but they haven't been reflected in Google's update. It is also important to keep in mind that Google only shows backlinks for the specific page you requested (usually the homepage).

It doesn't work like that. The more links there are the less weight each link will carry. Especially if there are 100 links all going to the same domain. It will look very spammy.

I too admit that several links from the same domain looks to be spam. By the way Google will never show all the back links. For it one should rely on Yahoo.