主要用到了指針、結構體、數組、鏈表、文件讀取
由於平時用java，所以感覺自己的代碼還是可以看看的，盡量用面向對象的思想去寫,這也使得原本近千行代碼的程序只用了不到一半的代碼完成。
User.h //用戶對象
struct User
{
char UserAccount[100];
char UserPassword[100];
int Money;
struct User *next;
};
UI.h //就是一個簡單的菜單顯示
int showMenu(char MenuItem[][20], int itemCount){
system("cls");
for (int i = 0; i < 10;i++){
printf("\n");
}
printf("***************************************************\n");
for (int i = 0; i < itemCount; i++){
printf("* ");
printf("%d.", i+1);
int Str_size = 20;
for (int j = 0; j < 10; j++){
if (MenuItem[i][j] != '\0'){
putchar(MenuItem[i][j]);
}
else{
putchar(' ');
}
}
printf(" *\n");
}
printf("***************************************************");
return 0;
}void writeIntoFIle(FILE *fp, char path[]){
fopen_s(&fp, path, "w+");
struct User *temp = (struct User *)malloc(sizeof(struct User));
temp = head;
for (int i = 0; i < 5; i++){
// printf("%s %s %d\n", temp->UserAccount, temp->UserPassword, temp->Money);
fprintf(fp, "%s %s %d\n", temp->UserAccount, temp->UserPassword, temp->Money);
if (temp->next != NULL)
temp = temp->next;
}
}
void initFile(FILE *fp, char path[]){
//fopen_s(&fp, path, "w+");
if (feof(fp)){
fprintf(fp, "%s %s %d\n", "6210300022352323", "123123", 10000);
fprintf(fp, "%s %s %d\n", "6210300022352527", "132132", 1000000);
fprintf(fp, "%s %s %d\n", "6210303002352323", "123123", 10000);
fprintf(fp, "%s %s %d\n", "6210300202235233", "123123", 10000);
fprintf(fp, "%s %s %d\n", "6213002323523233", "123123", 10000);
}
// fclose(fp);
}
void initdata(FILE *fp, char path[]){
/*printf("%d", fopen_s(&fp, path, "r+"));
printf("%d", fopen_s(&fp, path, "r+"));
printf("%d",fgetc(fp)==EOF);*/
if (fopen_s(&fp, path, "r+") == 0 && fgetc(fp) == EOF){
initFile(fp, path);
}
rewind(fp);
struct User *user;
Current_user = user = (struct User *)malloc(sizeof(struct User));
char temp[100];
//_getch();
while (fscanf_s(fp, "%s", &user->UserAccount, 100) != EOF){
fscanf_s(fp, "%s", &user->UserPassword, 100);
fscanf_s(fp, "%d\n", &user->Money, 100);
struct User *nextuser;
nextuser = (struct User *)malloc(sizeof(struct User));
printf("%s %s %d\n", user->UserAccount, user->UserPassword, user->Money);
if (head == NULL)
head = user;
user->next = nextuser;
user = nextuser;
}
fclose(fp);
}bool checkAccount(char account[],struct User *u){
struct User *temp = (struct User *)malloc(sizeof(struct User));
struct User *headCopy = (struct User *)malloc(sizeof(struct User));
temp = head;
*headCopy =* head;
while (temp != NULL){
bool isExist = true;
/*printf("first%s %d\n", head->UserAccount, head->Money);
printf("temp%s %d\n", temp->UserAccount, temp->Money);*/
for (int i = 0; i < 16; i++)
{
if (account[i]!=temp->UserAccount[i])
{
isExist = false;
break;
}
}
if (isExist)
{
u=temp;
Current_user = u;
//*head =* headCopy;
/* printf("findout%s\n",u->UserAccount);
printf("afterchange%s %s\n", Current_user->UserAccount, head->UserAccount);
printf("headcopy%s %s\n", headCopy->UserAccount, headCopy->UserPassword);
_getch();*/
return true;
}
temp = (temp->next);
}
return false;
}
bool checkPassword(char Userpwd[], char Inputpwd[]){
for (int i = 0; i<6; i++){
if (Userpwd[i] != Inputpwd[i]){
return false;
}
}
return true;
}
void showAccount(char account[]){
int length = strlen(account);
if (length>16)
length=16;
for (int i = 0; i < length; i++){
putchar(account[i]);
if ((i+1) % 4 == 0&&i!=0){
putchar(' ');
}
}
}
void showPassword(int length){
if (length>6)
length = 6;
for (int i = 0; i < length; i++){
_putch('*');
}
}
void InputAccount(char UserAccount[]){
int i = 0;
system("cls");
printf("請輸入用戶名：");
while ((UserAccount[i] = _getch()) != '\r'&&i<16){
if (UserAccount[i] == 8&&i>0){
UserAccount[i] = '\0';
UserAccount[i-1] = '\0';
i--;
}
else if (UserAccount[i] >= '0' && UserAccount[i] <= '9'){
if (i <= 15)
i++;
}
system("cls");
printf("請輸入用戶名：");
showAccount(UserAccount);
}
}
void InputPassword(char account[],char pwd[]){
int i = 0;
system("cls");
printf("用戶名：");
showAccount(account);
printf("\n請輸入密碼：");
while ((pwd[i] = _getch()) != '\r'){
if (pwd[i] == 8){
pwd[i] = '\0';
pwd[i - 1] = '\0';
i--;
}
else if (pwd[i] >= '0' && pwd[i] <= '9'){
if (i <= 5)
i++;
}
system("cls");
printf("用戶名：");
showAccount(account);
printf("\n請輸入密碼：");
showPassword(strlen(pwd));
}
}
void WithDraw(int Count){
if (Count > Current_user->Money){
printf("取款金額超出存款");
return;
}
else {
system("cls");
printf("取款金額%d\n按任意鍵返回上一菜單",Count);
Current_user->Money -= Count;
}
}
void Deposit(int Count){
system("cls");
printf("存款金額%d\n按任意鍵返回上一菜單", Count);
Current_user->Money += Count;
}
Main.cpp
#include#include #include #include struct User *head, *Current_user; #include "User.h" #include "UI.h" #include "AccountController.h" #include "FileController.h" int InputMoney(){ int result = 100; char inputItem = '\0'; int i = 0; system("cls"); printf("輸入金額："); while ((inputItem = _getch()) != '\r'){ system("cls"); printf("輸入金額："); if (inputItem >= '0'&&inputItem <= '9'){ if (result != 100){ result *= 10; result += (inputItem - 48) * 100; } else { result = (inputItem - 48) * 100; } } if (result > 5000){ printf("取款限額為5000"); result = 0; } printf("\n%d", result); } return result; } int SelectMoney(){ int result = 100; char inputItem = '\0'; char MoneyItem[][20] = { "100", "200", "500", "1000", "輸入金額" }; showMenu(MoneyItem, 5); while ((inputItem = _getch()) >='1'&&inputItem<='5') { switch (inputItem) { case '1': return 100; break; case '2': return 200; break; case '3': return 500; break; case '4': return 1000; break; case '5': return InputMoney(); break; default: printf("請輸入正確選項\n"); } } } bool OperationMenu(){ char input_seletor = '\0'; int Money = 0; struct User *temp = (struct User *)malloc(sizeof(struct User)); char newPassword[7] = { '\0' }; char confirmpassword[7] = { '\0' }; char LoginMenu[][20] = { "取款", "存款", "查詢余額", "修改密碼" ,"退卡"}; showMenu(LoginMenu, 5); while ((input_seletor = _getch()) >= '1'&&input_seletor <= '5') { switch (input_seletor) { case '1': Money = SelectMoney(); WithDraw(Money); break; case '2': Money = SelectMoney(); Deposit(Money); break; case '3': system("cls"); printf("當前余額：%d\n按任意鍵返回", Current_user->Money); break; case '4': system("cls"); InputPassword(Current_user->UserAccount, newPassword); system("cls"); printf("再次輸入以確認密碼\n,按任意鍵繼續輸入"); _getch(); InputPassword(Current_user->UserAccount, confirmpassword); if (checkPassword(newPassword, confirmpassword)){ for (int i = 0; Current_user->UserPassword[i] != '\0';i++){ Current_user->UserPassword[i] = newPassword[i]; } printf("%s %s ",newPassword,confirmpassword); printf("\n密碼修改成功！"); } else{ system("cls"); printf("兩次密碼輸入不一致"); } break; case '5': return true; break; default: break; } _getch(); break; } OperationMenu(); } void startATM(){ FILE *fp = NULL; char path[] = "C:\\Users\\user\\Desktop\\Account.txt"; initdata(fp, path);//初始化數據 int Islogin = 0; char input_seletor = '\0'; char UserAccount[100] = { '\0' }; char UserPwd[100] = { '\0' }; char InputPwd[100] = { '\0' }; InputAccount(UserAccount); //strcpy_s(UserAccount, "6210300022352527"); if (checkAccount(UserAccount, Current_user)){ while (Islogin<=2){ InputPassword(UserAccount, InputPwd); //strcpy_s(InputPwd, "132132"); if (checkPassword(Current_user->UserPassword, InputPwd)){ printf("login successful\n"); if (OperationMenu()){ break; } Islogin = 0; } else{ Islogin++; printf("password error"); } } if (Islogin >= 2){ system("cls"); printf("密碼三次輸入錯誤，吞卡\n"); } else{ writeIntoFIle(fp,path); system("cls"); printf("數據保存成功"); } } _getch(); } int main(){ startATM(); return 0; }
