C Language Project-instructor information/Student Achievement Management System

The following code is pasted: void add_tea (Teacher tea []) {int I = 0, j, num; char str [5]; if (numtea! = 0) {printf ("cover the current record? (Y/n) \ n "); gets (str); if (str [0] = 'y' | str [0] = 'y ') I = 0; else I = numtea;} printf ("Please input the number of you add the teachers:"); scanf ("% d", & num ); if (I = 0) numtea = num; else numtea + = num; if (numtea> lens) {lens + = 10; tea = (Teacher *) realloc (tea, lens * SIZE);} printf ("Please input the teacher's info: \ n"); for (; I <numtea; I ++) {getchar (); printf ("please input the teacher's NO.: "); gets (tea. number); pri Ntf ("please input the teacher's name:"); gets (tea. name); printf ("please input the teacher's sex (man/woman 0/1):"); gets (tea. sex); if (tea. sex [0] = '0') strcpy (tea. sex, "man"); else strcpy (tea. sex, "woman"); printf ("please input the teacher's address:"); gets (tea. addr); printf ("the teacher is married (No/yes0/1):"); gets (tea. married); if (tea. sex [0] = '0') strcpy (tea. sex, "No"); else strcpy (tea. sex, "Yes ") ;} Display_tea (tea, 0, numtea-1); getchar ();} void display_tea (Teacher tea [], int n1, int n2) {int I; char str [2]; if (numtea = 0) {printf ("There is Nothing! \ N "); printf (" Do you want to open some file to find the record? (Y/N) \ n "); gets (str); if (str [0] = 'y' | str [0] = 'y ') {openfileTXT (tea) ;}else {return ;}} else {for (I = n1; I <= n2; I ++) printf ("number: % s \ tname: % s \ t \ tsex: % s \ t \ taddr: % s \ t \ tmarried: % s \ t ", tea. number, tea. name, tea. sex, tea. addr, tea. married) ;}} void adjust (Teacher tea []) {char str [5]; int I =-1, j; if (numtea = 0) {printf ("there is nothing !!! \ N "); return;} while (I <0) {I = find_tea (tea); if (I> = 0) {printf (" Delete it? (Y/n) "); gets (str); if (str [0] = 'y' | str [0] = 'y ') {delete_tea (tea, I);/* count (stud); */} else {printf ("Adjust it? (Y/n) "); gets (str); if (str [0] = 'y' | str [0] = 'y ') {printf ("Please input something you want: \ n"); printf ("please input the teacher's NO.: "); gets (tea. number); printf ("please input the teacher's name:"); gets (tea. name); printf ("please input the teacher's sex (man/woman 0/1):"); gets (tea. sex); if (tea. sex [0] = '0') strcpy (tea. sex, "man"); else strcpy (tea. sex, "woman"); printf ("please input the teacher's ad Dress: "); gets (tea. addr); printf ("the teacher is married (No/yes0/1):"); gets (tea. married); if (tea. sex [0] = '0') strcpy (tea. sex, "No"); else strcpy (tea. sex, "Yes");}/* count (stud); */} display_tea (tea, 0, numtea-1);} printf ("Again to Adjust it? (Y/n) \ n "); gets (str); if (str [0] = 'y' | str [0] = 'y ') I =-1; else I = 1 ;}} int find_tea (Teacher tea []) {char str [10]; int I; if (numtea = 0) {printf ("There is nothing \ n"); return-1;} else {printf ("what do you want your fashion? \ N1.number \ t2.name \ t3.addr \ n "); gets (str); if (str [0] = '1') {printf (" please input the teacher's number: "); gets (str); for (I = 0; I <= numtea; I ++) if (strcmp (str, tea. number) = 0) {display_tea (tea, I, I); break;} else continue;} else if (str [0] = '2 ') {printf ("please input the teacher's name:"); gets (str); for (I = 0; I <= numtea; I ++) if (strcmp (str, tea. name) = 0) {display_tea (tea, I, I); break;} else continue;} e Lse if (str [0] = '3') {printf ("please input the teacher's address:"); gets (str); for (I = 0; I <= numtea; I ++) if (strcmp (str, tea. addr) = 0) {display_tea (tea, I, I); break;} else continue;} if (I> numtea) {printf ("Nothing has find \ n"); return-1 ;}return I ;}void delete_tea (Teacher tea [], int I) {int j; while (I> = 0) {for (j = I; j <numtea; j ++) tea [j] = tea [j + 1]; numtea --; printf ("Delete Success! \ N ") ;}} int writetoTXT (Teacher tea []) {int I = 0, j; FILE * fp; char filename [20]; printf ("Please input the file's name:"); gets (filename); fp = fopen (filename, "w"); fprintf (fp, "% d \ n", numtea); while (I <numtea) {fprintf (fp, "% s", tea. number, tea. name, tea. sex, tea. addr, tea. married); I ++;} fclose (fp); printf ("Save success !!! \ N "); display_tea (tea, 0, numtea-1); numtea = 0; return 0;} int openfileTXT (Teacher tea []) {int I = 0, j; FILE * fp; char filename [20], str [2]; if (numtea! = 0) {printf ("There has some records, Do you want to save them? (Y/n) "); gets (str); if (str [0] = 'y' | str [0] = 'y ') writetoTXT (tea);} printf ("Please input the file name:"); gets (filename); numtea = 0; if (fp = fopen (filename, "rb +") = NULL) {printf ("Sorry, can't open the file \ n"); return (-1);} fscanf (fp, "% d", & numtea); fgetc (fp); while (I <numtea) {fscanf (fp, "% s", & tea. number); fscanf (fp, "% s", & tea. name); fscanf (fp, "% s", & tea. sex); fscanf (fp, "% s", & tea. addr); fscanf (fp, "% S ", & tea. married); I ++;} fclose (fp); printf (" Read the file success \ n "); printf (" Display the record? (Y/n) "); gets (str); if (str [0] = 'y' | str [0] = 'y') display_tea (tea, 0, numtea-1); return (0);} void displayTheSystemInfo () {printf ("\ t Producer: \ n"); printf (" http://www.shengshiyouxi.com "); Printf (" \ n ");}