char *p,p1,p2,p3;p1 = new char;p1 = "2";p1 = p; //这里是什么意思?p2 = p1;p3 = new char;pa = "6";p1 = p3; //p1又指另p3了那p2现在指向哪个?sorry, 应该是char *p,*p1,*p2,*p3;