设计一个读不死与写不死的USB程序.一般USB连写四次,别人不去读那个数据.第五次写这个数据就会死掉.本程序就是解决这个问题。-The design of a read and write immortal immortality USB procedures. General USB link writing four times, other people do not read that data. Writing the fifth time this data will be dead