New Interpretations of Subject Matter of Copyright

Expression not idea is rightized in copyright act which does not mean that idea is not protected by the copyright act.The subject matters of law include right,the interest of law and the free resources.Expression is been directly protected by the law as right.Meanwhile,idea is indirectly protected by the law as the interest of law.The expression and idea in the public domain is not treated by the copyright law,however,the use of the expression and idea should not contradict the principle of faithfulness and fidelity and the principle of public order and goodness custom.The treatment of copyright act is determined by the technique of law.