f for(i=k;i<*pn; i++ g-11=g int search(GOoDs glint n, long int tnum) //查找功能,tmm为待查商品的编号 Sint 1, while(i>=0&&gli]. numl=tnum return() /若查找成功,返回元素所在的位置;若查 找失败,则返回-1值* void sale(goods gl int n) (GOODS a[100; int i,j=0, k, count; ong tnum, float money=0.0 printf"input sale goods num:else {for(i=k;i<*pn;i++) g[i-1]=g[i]; (*pn)--; } } int search(GOODS g[],int n,long int tnum) //查找功能,tnum为待查商品的编号 {int i; i=n-1; while(i>=0&&g[i].num!=tnum) i--; return(i); /*若查找成功，返回元素所在的位置；若查 找失败，则返回-1值*/ } void sale(GOODS g[],int n) {GOODS a[100]; int i,j=0,k,count; long tnum; float money=0.0; printf("input sale goods num:"); scanf("%ld",&tnum);