C++程序

return length;}\rchar &operator[](int i)\r(\rif (i>=O&&i<length)\r(\rreturn size[i];\r)\relse\r(\rcoutvv”\n Ó<ÔÕ”\rreturn size[length-l];\r)\r)\rprivate:\rint length;\rchar *size;\r)\rint main()\r(\rA a(6);\rchar *ch="helk)12”\rfor (int i = 0; i < 8; i++)\r(\ra[i]=ch[i];\r)\rcout#n\n\n";\rfor (int i = 0; i < 8; i++)\r(\rcout#alij;\r)\rreturn 0;\r)\r77:Ö`×Øn\r#include<iostream>\rusing namespace std;\rstruct book.\rint num;\rfloat price;\rstruct book*next;\r);\rint main()\r(\rbook x,y,z,*head,*p;\rx.num= 10000;\rx.price=14.5f;\ry.num=20000;\ry.price=23.4f;\rz.num=30000;\rz.price=45.6f;\rhead=&x;\rx.next=&y;\ry.next=&z;\rz.next=NULL;\rp=head;\rwhile (p!=NULL)\r(\rcout#p->num#endl#p->price#endl;\rp=p->next;\rreturn 0;\r78