版权声明怎么写？

以下是 U.S. Copyright Office 的一份 Copyright Notice 详见: http://www.copyright.gov

The symbol © (letter C in a circle); the word “Copyright”; or the abbreviation “Copr.”
The year of first publication. If the work is a derivative work or a compilation incorporating previously published material, the year date of first publication of the derivative work or compilation is sufficient. Examples of derivative works are translations or dramatizations; an example of a compilation is an anthology. The year may be omitted when a pictorial, graphic, or sculptural work, with accompanying textual matter, if any, is reproduced in or on greeting cards, postcards, stationery, jewelry, dolls, toys, or useful articles.
The name of the copyright owner, an abbreviation by which the name can be recognized, or a generally known alternative designation of owner.

想了解的话自己去翻译一下喽，值得提一下的是，Copyright 和 © 是同一个意思，写一个就够了。

看样子，国内网站都是一个模板刻出来的…

相比较国外网站近年来就简洁多了。