Product Management System

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   Typedef struct com {// char num [10]; long num; char name [10]; Long Count; // char amount [10]; // char from [20]; // char stockdate [10]; struct com * Next;} com; # define Len sizeof (COM) # define print "%-15ld %-15 S %-15ld/N", ptr1-> num, ptr1-> name, ptr1-> countcom * head = NULL; com * ptr1 = NULL, * ptr2 = NULL; file * FP; void start (); // start function overcom * openfile (); // load module overcom * input (); // enter overcom * insert_perf (); // insert overcom * d El_perf (); // Delete overcom * revise_perf (); // modify overcom * pass (); // sort overvoid save (COM * head ); // save overvoid printf_perf (); // output overvoid search (); // search for overchar filename1 [20]; char filename2 [] = ". dat "; int main (void) {start (); System (" CLS "); fflush (stdin); // printf (" press any key to go to the main menu/N "); // getch (); int select; char menu [] = {"1. enter goods information/N "2. output all goods information/N "" 3. insert product information/N "4. delete product information/N "5. modify product information/N "" 6. overall Sorting/N "7. comprehensive search/N" "8. disk/N "" 0. exit/N "}; do {system (" CLS "); printf ("/n ********************************* **************************************** * *****/N "); printf ("chlaws production "); printf ("/n *********************************** **************************************** * ***/N "); puts (menu ); printf ("************************************* **************************************** **/N "); printf ("chlaws production"); printf ("/n **************** **************************************** ***********************"); Printf ("select from 0-8:"); scanf ("% d", & select); Switch (select) {Case 1: Head = input (); // input module break; Case 2: printf_perf (); // output module break; Case 3: Head = insert_perf (); // insert module break; Case 4: head = del_perf (); // Delete module break; Case 5: Head = revise_perf (); // modify module break; Case 6: Head = pass (); // sorting module break; Case 7: Search (); // query module break; case 8: Save (head); // save Module B Reak; Case 0: break;} while (select); getch (); Return 0;} void start () {system ("CLS"); fflush (stdin ); char message [] = {"Instructions for use of supermarket goods inventory management system/N" "this system is a supermarket goods inventory information management system/N" "system that inputs multiple types of goods information, the system will save the product category name/N "you entered as the file name/N" ". The system will insert and delete the saved product information after it is called up, modify/N "" and then save/N "again. At the same time, the system also has the product number, goods name/N "" sorting and searching function/N "" welcome to use Goods Information Inventory Management System/N "}; puts (Message ); printf ("press any key to return/N"); getch ();} com * input () {system ("CLS"); fflush (stdin); com * ptr3; int n = 0; char cell [5]; char y [] = "yes"; ptr1 = (COM *) malloc (LEN); printf ("input num:/N "); fflush (stdin); scanf ("% lD", & ptr1-> num); fflush (stdin); printf ("input name:/N"); fflush (stdin ); gets (ptr1-> name); printf ("input count:/N"); fflush (stdin); scanf ("% lD", & ptr1-> count ); head = ptr1; ptr2 = ptr1; do {printf ("are you continue input? (Yes/No)/n "); fflush (stdin); gets (cell); If (strcmpi (cell," no ") = 0) {break ;} ptr1 = (COM *) malloc (LEN); printf ("input num:/N"); fflush (stdin); scanf ("% lD ", & ptr1-> num); printf ("input name:/N"); fflush (stdin); gets (ptr1-> name); printf ("input count: /n "); fflush (stdin); scanf (" % d ", & ptr1-> count); ptr2-> next = ptr1; ptr2 = ptr1; printf ("input OK! /N ");} while (strcmpi (cell, y) = 0 ); printf ("/n *************************** ********************"); ptr2-> next = NULL; ptr3 = head; while (ptr3! = NULL) {printf ("/nnum: % LD/tname: % S/tcount: % LD/N", ptr3-> num, ptr3-> name, ptr3-> count); ptr3 = ptr3-> next;} printf ("/n pay attention to save/N"); printf ("/n press any key to return/N "); getch (); return head;} com * insert_perf () {system ("CLS"); fflush (stdin); com * ptr3 = (COM *) malloc (LEN ); char key [4]; head = openfile (); ptr1 = head; while (ptr1-> next! = NULL) {ptr1 = ptr1-> next;} printf ("input insert goods's num:/N"); fflush (stdin); scanf ("% lD ", & ptr3-> num); printf ("input insert goods's name:/N"); fflush (stdin); gets (ptr3-> name ); printf ("input insert goods's count:/N"); fflush (stdin); scanf ("% lD", & ptr3-> count); // ptr1 = ptr3; ptr3-> next = ptr1-> next; ptr1-> next = ptr3; ptr1 = ptr3; printf ("insert OK! /N "); do {printf (" are you continue insert data? (Yes/No)/n "); fflush (stdin); gets (key); If (! Strcmpi (key, "no") {printf ("OK! You already insert! /N "); break;} If (! Strcmpi (key, "yes") {ptr3 = (COM *) malloc (LEN); printf ("input insert goods's num:/N "); fflush (stdin); scanf ("% lD", & ptr3-> num); printf ("input insert goods's name:/N"); fflush (stdin ); gets (ptr3-> name); printf ("input insert goods's count:/N"); fflush (stdin); scanf ("% lD ", & ptr3-> count); ptr3-> next = ptr1-> next; ptr1-> next = ptr3; ptr1 = ptr3 ;}} while (! Strcmpi (key, "yes ")); //// // save it to a file ////////////////////// //////////////////////////////////////// printf ("/n pay attention to save/N "); printf ("/n press any key to return/N"); getch (); return head;} com * del_perf () {system ("CLS"); fflush (stdin ); int choise; int N; long num; char name [20]; char key [4]; com * ptr3; head = openfile (); If (Head = NULL) {return NULL;} do {system ("CLS"); printf ("input you can delete goods's num or name! /N "); printf (" 1. Input num to delete/n2.input name to delete/n3.press any key to return "); printf ("/ninput you choise! /N "); printf (" choise: "); fflush (stdin); scanf (" % d ", & choise); ptr1 = head; n = 1; if (choise! = 1 & choise! = 2) {break;} If (choise = 1) {printf ("input num! /N "); fflush (stdin); scanf (" % lD ", & num); // printf (" ptr1-> num = % lD ", ptr1-> num); While (ptr1! = NULL & ptr1-> num! = Num) {ptr2 = ptr1; ptr1 = ptr1-> next; n = n + 1; // printf ("ptr1-> num = % lD, ptr2-> num = % lD, n = % d ", ptr1-> num, ptr2-> num, n);} If (ptr1! = NULL) {If (n = 1) {head = ptr1-> next;} If (n! = 1) {ptr2-> next = ptr1-> next;} Free (ptr1); printf ("delete OK! /N "); printf (" last data:/N "); ptr3 = head; while (ptr3! = NULL) {printf ("/n %-15ld %-15 S %-15ld/N", ptr3-> num, ptr3-> name, ptr3-> count ); ptr3 = ptr3-> next ;}} else {printf ("in database can not find you input data/N ");}} // If choise = 1if (choise = 2) {printf ("input name/N"); fflush (stdin); gets (name ); while (strcmpi (ptr1-> name, name )! = 0 & ptr1-> next! = NULL) {ptr2 = ptr1; ptr1 = ptr1-> next; n = n + 1;} If (ptr1! = NULL) {If (n = 1) {head = ptr1-> next;} else {ptr2-> next = ptr1-> next;} Free (ptr1 ); printf ("delete OK! /N "); printf (" last data:/N "); ptr3 = head; while (ptr3! = NULL) {printf ("/n %-15ld %-15 S %-15ld/N", ptr3-> num, ptr3-> name, ptr3-> count ); ptr3 = ptr3-> next ;}} else {printf ("in database can not find you input name! /N ") ;}}// if choise = 2; printf ("/Nare you continue to delete? (Yes/No)/n "); fflush (stdin); gets (key);} while (strcmpi (key," yes ") = 0 ); printf ("/n pay attention to save/N"); printf ("/n press any key to return/N"); getch (); return head;} com * revise_perf () {long num; int choise; char name [20]; char key [4]; head = openfile (); fflush (stdin); If (Head = NULL) {return NULL;} do {ptr1 = head; System ("CLS"); printf ("1: Modify information by product number/N2: Modify information by product name/N3: do not press any key/N "); fflush (stdin); scanf (" % d ", & choise); printf (" choise = % d ", choise); If (choise! = 1 & choise! = 2) {break;} If (choise = 1) {printf ("/N input goods number/N"); fflush (stdin); scanf ("% lD ", & num); While (ptr1! = NULL & ptr1-> num! = Num) {ptr1 = ptr1-> next;} If (ptr1! = NULL) {printf ("the information you want to modify has been found/N"); printf ("goods No.: % LD/n goods name: % s/n goods quantity: % lD ", ptr1-> num, ptr1-> name, ptr1-> count); sleep (2000); System (" CLS "); printf ("/n enter the information you want to modify here/N"); printf ("/n enter the modified product number:/N"); fflush (stdin ); scanf ("% lD", & ptr1-> num); printf ("/n enter the modified product name:/N"); fflush (stdin ); gets (ptr1-> name); printf ("/N input:/N"); fflush (stdin); scanf ("% lD ", & ptr1-> count);} else {printf ("the product number you entered does not exist/N");} // C Hoise = 1if (choise = 2) {printf ("/N input goods name/N"); fflush (stdin); gets (name); // while (ptr1! = NULL & strcmpi (ptr1-> name, name )! = 0) {ptr1 = ptr1-> next;} If (ptr1! = NULL) {printf ("the information you want to modify has been found/N"); printf ("goods No.: % LD/n goods name: % s/n goods quantity: % lD ", ptr1-> num, ptr1-> name, ptr1-> count); sleep (2000); System (" CLS "); printf ("/n enter the information you want to modify here/N"); printf ("/n enter the modified product number:/N"); fflush (stdin ); scanf ("% lD", & ptr1-> num); printf ("/n enter the modified product name:/N"); fflush (stdin ); gets (ptr1-> name); printf ("/N input:/N"); fflush (stdin); scanf ("% lD ", & ptr1-> count);} else {printf ("the name of the product you entered does not exist/N");} // ch Oise = 2 printf ("whether to continue modifying (yes/no)/n"); fflush (stdin); gets (key) ;}while (strcmpi (key, "Yes") = 0); printf ("/n pay attention to save/N"); printf ("/n press any key to return/N"); getch (); return head;} com * pass () {char key [4]; int choise; int select; long temp; head = openfile (); fflush (stdin ); if (Head = NULL) {return NULL;} do {system ("CLS"); ptr1 = head; ptr2 = head-> next; printf ("1: sort by product number/N2: sort by product quantity/N3: do not perform any operation by any key/N "); fflush (stdin); scanf (" % d ", & choise ); If (choise! = 1 & choise! = 2) {break;} If (choise = 1) {system ("CLS"); printf ("1. sort by size/N2. sort by size/N "); fflush (stdin); scanf (" % d ", & select ); if (select = 1) {While (ptr1! = NULL) {While (ptr2! = NULL) {If (ptr1-> num> ptr2-> num) {temp = ptr1-> num; ptr1-> num = ptr2-> num; ptr2-> num = temp;} ptr2 = ptr2-> next;} // while ptr2ptr1 = ptr1-> next; If (ptr1-> next = NULL) {break ;} elseptr2 = ptr1-> next;} // while ptr1} // sort by size if (select = 2) {While (ptr1! = NULL) {While (ptr2! = NULL) {If (ptr1-> num <ptr2-> num) {temp = ptr1-> num; ptr1-> num = ptr2-> num; ptr2-> num = temp;} ptr2 = ptr2-> next;} // while ptr2ptr1 = ptr1-> next; If (ptr1-> next = NULL) {break ;} elseptr2 = ptr1-> next;} // while prt1} // sort printf in ascending order ("sorting completed! /N ");} // choise = 1if (choise = 2) {system (" CLS "); printf (" 1. sort by size/N2. sort by size/N "); fflush (stdin); scanf (" % d ", & select ); if (select = 1) {While (ptr1! = NULL) {While (ptr2! = NULL) {If (ptr1-> count> ptr2-> count) {temp = ptr1-> count; ptr1-> COUNT = ptr2-> count; ptr2-> COUNT = temp;} ptr2 = ptr2-> next;} // while ptr2ptr1 = ptr1-> next; If (ptr1-> next = NULL) {break ;} elseptr2 = ptr1-> next;} // while ptr1} // sort by size if (select = 2) {While (ptr1! = NULL) {While (ptr2! = NULL) {If (ptr1-> count <ptr2-> count) {temp = ptr1-> count; ptr1-> COUNT = ptr2-> count; ptr2-> COUNT = temp;} ptr2 = ptr2-> next;} // while ptr2ptr1 = ptr1-> next; If (ptr1-> next = NULL) {break ;} elseptr2 = ptr1-> next;} // while prt1} // printf ("the sorting operation is completed! /N ");} // choise = 2 printf ("/n whether to continue sorting! (Yes/No)/n "); fflush (stdin); gets (key);} while (! Strcmpi (key, "yes"); printf ("/n pay attention to save/N"); printf ("/n press any key to return/N"); getch (); return head;} void save (COM * head) {system ("CLS"); fflush (stdin); printf ("/ninput filename1/N"); fflush (stdin ); gets (filename1); If (FP = fopen (strcat (filename1, filename2), "WB") = NULL) {printf ("cannot file! /N "); return;} ptr1 = head; fflush (stdin); rewind (FP); While (ptr1! = NULL) {If (! Fwrite (ptr1, Len, 1, FP) {printf ("input to file false! /N "); return;} ptr1 = ptr1-> next;} fclose (FP); printf (" Save OK! /N "); printf (" press any key to return/N "); getch ();} void printf_perf () {system (" CLS "); fflush (stdin ); head = openfile (); int I = 1; if (Head = NULL) {return;} fflush (stdin); ptr2 = head; while (ptr2! = NULL) {printf ("/nnum: % LD/tname: % S/tcount: % LD/N", ptr2-> num, ptr2-> name, ptr2-> count); ptr2 = ptr2-> next; I ++; If (I/15 = 1) {printf ("input any key to look next page/N"); getch (); System ("CLS"); I = 1 ;}} printf ("return by any key/N"); getch ();} void search () {system ("CLS"); fflush (stdin); int choise; long num; char name [20]; head = openfile (); ptr1 = head; printf ("input you can search goods's num or name! /N "); printf (" 1. Input num/n2.input name/n3.press any key to return "); printf ("/ninput you choise! /N "); fflush (stdin); scanf (" % d ", & choise); If (choise = 1) {printf (" input num! /N "); fflush (stdin); scanf (" % lD ", & num); While (ptr1-> num! = Num & ptr1-> next! = NULL) {// ptr2 = ptr1; ptr1 = ptr1-> next; // n = n + 1;} If (ptr1! = NULL) {printf ("find data! /N "); sleep (1000); System (" CLS "); printf (print );} else {printf ("in database can not find you input data/N") ;}} if (choise = 2) {printf ("input name/N "); fflush (stdin); gets (name); While (strcmpi (ptr1-> name, name )! = 0 & ptr1-> next! = NULL) {// ptr2 = ptr1; ptr1 = ptr1-> next; // n = n + 1;} If (ptr1! = NULL) {printf ("find data! /N "); sleep (1000); System (" CLS "); printf (print);} else {printf (" in database can not find you input name! /N ") ;}}// printf (" press any key to return/N "); getch () ;}com * openfile () {system (" CLS "); int n = 1; printf ("input filename1:/N"); fflush (stdin); gets (filename1); If (FP = fopen (strcat (filename1, filename2 ), "rb") = NULL) {printf ("can not open file! /N "); getch (); Return (null);} If (! (Ptr2 = ptr1 = (COM *) malloc (LEN) {printf ("memory assign false! /N "); getch (); Return (null);} If (! Fread (ptr1, Len, 1, FP) {printf ("can not read in file/N"); getch (); Return (null );} if (ptr1-> next = NULL) {head = ptr1;} else {do {If (n = 1) {head = ptr1 ;} else {ptr2-> next = ptr1;} n = n + 1; ptr2 = ptr1; If (! (Ptr1 = (COM *) malloc (LEN) {printf ("memory assign false! /N "); getch (); Return (null);} If (! Fread (ptr1, Len, 1, FP) {printf ("can not read in file/N"); getch (); Return (null );}} while (ptr1-> next! = NULL); ptr2-> next = ptr1;} fclose (FP); // printf ("return by any key/N"); // getch (); return head ;}