confident的用法

be confident with sb.举例如下:
of
William is certainly confident of his future success.
I think I am fully confident of his success.

in
And we are confident in principles that unite and lead us onward.
对这些将我们团结起来并指引我们向前的原则，我们充满信心。

with
Appears confident with opposite sex 面对异性坦然自信

confident : adj.

eg1:
Be a bit more confident in yourself![人物]
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eg2:
I'm confident of his skills as a manager.[事物]
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我肯定是 be confident in sb
另外be confident of sth

in后面是人物，with后面加事物