病毒指“编制或者在计算机程序中插入的破坏计算机功能或者破坏数据，影响计算机使用并且能够自我复制的一组计算机指令或者程序代码”。-Virus refers to　prepare or in a computer program insert damage computer functions or destroy data, impact of computer use and the ability to replicate a set of computer instructions or the program code .