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需求
写一个shell程序命名为wc，统计文件字符数、行数和单词数。
写一个shell程命名为bank，完成以下功能：退出、存款、取款、添加账户、删除账户、查询账户、显示所有账户，所有信息保存在account.dat文件中，每次操作会实时更新account.dat文件。
编写对应的makefile，使用 make编译
shell版本
https://blog.csdn.net/qq21497936/article/details/79952413
实现截图（c与shell的差不多）
wc
bank
wc的makefile
CC=gcc
wc : wc.o
$(CC) -o wc wc.o
wc.o : wc.c
$(CC) -c wc.c
clean:
rm -rf wc.o wc
wc的c代码
#include <stdio.h>
void wc(char *path)
{
int isWord = 0;
int chars = 0;
int rows = 0;
int words = 0;
int ch;
FILE *fp = NULL;
fp = fopen(path, "r");
if(fp == NULL)
{
printf("Failed to open file:%s", path);
return;
}
do
{
ch = fgetc(fp);
if(ch != EOF)
chars++;
if(ch == '\n')
rows++;
if((ch >= 'a' && ch <='z') || (ch >= 'A' && ch <='Z'))
{
isWord = 1;
}else{
if(isWord == 1)
words++;
isWord = 0;
}
}while(ch != EOF);
fclose(fp);
printf("===== file: %s =====\n", path);
printf("字符数:%d\n", chars);
printf("换行数:%d\n", rows);
printf("单词数:%d\n", words);
return;
}
int main(int argc, char *argv[])
{
int i = 0;
char path[32] = {0x00};
if( argc == 1 )
{
printf("input a file:");
scanf("%s", path);
wc(path);
}else{
for(i = 1; i < argc; i++)
{
wc(argv[i]);
}
}
}
bank的makefile
CC=gcc
bank : bank.o
$(CC) -o bank bank.o
bank.o : bank.c
$(CC) -c bank.c
clean:
rm -rf bank.o bankbank的c代码
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define DATA_FILE ("accounts.dat")
struct Info *pAccountHead = 0;
struct Info{
char firstName[128];
char middleName[128];
char lastName[128];
char number[128];
int balance;
struct Info *pNext;
};
void loadInfo()
{
struct Info *p = 0;
struct Info *q = 0;
struct Info *pInfo = 0;
FILE *fp = fopen(DATA_FILE, "rb");
if(fp == NULL)
{
printf("Failed to open file : %s", DATA_FILE);
return;
}
pAccountHead = 0;
do{
struct Info *pInfo = (struct Info *)malloc(sizeof(struct Info));
memset(pInfo, 0x00, sizeof(struct Info));
if(5!=fscanf(fp,"%s %s %s %s %d ", pInfo->firstName, pInfo->middleName, pInfo->lastName, pInfo->number, &pInfo->balance))
{
free(pInfo);
break;
}
if(pAccountHead == 0)
{
pAccountHead = pInfo;
}else{
p = pAccountHead;
while(p->pNext != 0)
{
p = p->pNext;
}
p->pNext = pInfo;
pInfo->pNext = 0;
}
}while(1);
fclose(fp);
}
void saveInfo()
{
struct Info *p = 0;
int result = 0;
FILE *fp = 0;
fp = fopen(DATA_FILE, "wb+");
if(fp == NULL)
{
printf("Failed to open file : %s", DATA_FILE);
return;
}
p = pAccountHead;
while(p != 0)
{
fprintf(fp,"%s %s %s %s %d ", p->firstName, p->middleName, p->lastName, p->number, p->balance);
p = p->pNext;
}
fclose(fp);
}
int showMenu()
{
int number = 0;
printf("========== 银行账户菜单 ==========");
printf("\n");
printf("0.退出");
printf("\n");
printf("1.存款");
printf("\n");
printf("2.取款");
printf("\n");
printf("3.添加账户");
printf("\n");
printf("4.删除账户");
printf("\n");
printf("5.查询账户余额");
printf("\n");
printf("6.打印所有账户信息");
printf("\n");
printf("=================================");
printf("\n");
printf("请输入您的选择(0-6):");
scanf("%d", &number);
return number;
}
void menu2()
{
int i = 0;
char number[128] = {0x00};
int balance;
struct Info *pInfo = 0;
struct Info *p = 0;
struct Info *q = 0;
printf("请输入account(6位数字):");
scanf("%s", number);
if(strlen(number) != 6)
{
printf("账户必须是6位数字!!!");
printf("\n");
return;
}
for(i = 0; i < 6; i++)
{
if(number[i] >= '0' && number[i] <= '9')
{
;
}else{
printf("账户必须是6位数字!!!");
printf("\n");
return;
}
}
printf("请输入取款金额(元):");
scanf("%d", &balance);
q = 0;
p = pAccountHead;
while(p != 0)
{
if(strcmp(p->number, number) == 0)
{
if(p->balance-balance < 0)
{
printf("取款失败，账户余额不足!!!");
printf("\n");
return;
}
p->balance-=balance;
printf("取款成功!!!");
printf("\n");
return;
}
q = p;
p = p->pNext;
}
printf("未找到账户");
printf("\n");
}
void menu1()
{
int i = 0;
char number[128] = {0x00};
int balance;
struct Info *pInfo = 0;
struct Info *p = 0;
struct Info *q = 0;
printf("请输入account(6位数字):");
scanf("%s", number);
if(strlen(number) != 6)
{
printf("账户必须是6位数字!!!");
printf("\n");
return;
}
for(i = 0; i < 6; i++)
{
if(number[i] >= '0' && number[i] <= '9')
{
;
}else{
printf("账户必须是6位数字!!!");
printf("\n");
return;
}
}
printf("请输入存款金额(元):");
scanf("%d", &balance);
q = 0;
p = pAccountHead;
while(p != 0)
{
if(strcmp(p->number, number) == 0)
{
p->balance+=balance;
printf("存款成功!!!");
printf("\n");
return;
}
q = p;
p = p->pNext;
}
printf("未找到账户");
printf("\n");
}
void menu3()
{
int i = 0;
char fisrtName[128] = {0x00};
char middleName[128] = {0x00};
char lastName[128] = {0x00};
char number[128] = {0x00};
struct Info *pInfo = 0;
struct Info *p = 0;
printf("请输入firstName:");
scanf("%s", fisrtName);
printf("请输入middleName:");
scanf("%s", middleName);
printf("请输入lastName:");
scanf("%s", lastName);
printf("请输入account(6位数字):");
scanf("%s", number);
if(strlen(number) != 6)
{
printf("账户必须是6位数字!!!");
printf("\n");
return;
}
for(i = 0; i < 6; i++)
{
if(number[i] >= '0' && number[i] <= '9')
{
;
}else{
printf("账户必须是6位数字!!!");
printf("\n");
return;
}
}
pInfo = (struct Info*)malloc(sizeof(struct Info));
memset(pInfo, 0x00, sizeof(struct Info));
memcpy(pInfo->firstName, fisrtName, strlen(fisrtName)+1);
memcpy(pInfo->middleName, middleName, strlen(middleName)+1);
memcpy(pInfo->lastName, lastName, strlen(lastName)+1);
memcpy(pInfo->number, number, strlen(number)+1);
pInfo->balance = 0;
pInfo->pNext = 0;
if(pAccountHead == 0)
{
pAccountHead = pInfo;
return;
}
p = pAccountHead;
do
{
if(p->pNext == 0)
{
p->pNext = pInfo;
return;
}
p = p->pNext;
}while(1);
}
void menu4()
{
int i = 0;
char number[128] = {0x00};
struct Info *q = 0;
struct Info *p = 0;
printf("请输入账户(6位数字):");
scanf("%s", number);
if(strlen(number) != 6)
{
printf("账户必须是6位数字!!!");
printf("\n");
return;
}
for(i = 0; i < 6; i++)
{
if(number[i] >= '0' && number[i] <= '9')
{
;
}else{
printf("账户必须是6位数字!!!");
printf("\n");
return;
}
}
q = 0;
p = pAccountHead;
while(p != 0)
{
if(strcmp(p->number, number) == 0)
{
if(q == 0)
{
pAccountHead = p->pNext;;
free(p);
}else{
q->pNext = p->pNext;
free(p);
}
printf("删除账户%s成功!!!", number);
printf("\n");
}
q = p;
p = p->pNext;
}
}
void menu5()
{
int i = 0;
char number[128] = {0x00};
struct Info *q = 0;
struct Info *p = 0;
printf("请输入账户(6位数字):");
scanf("%s", number);
if(strlen(number) != 6)
{
printf("账户必须是6位数字!!!");
printf("\n");
return;
}
for(i = 0; i < 6; i++)
{
if(number[i] >= '0' && number[i] <= '9')
{
;
}else{
printf("账户必须是6位数字!!!");
printf("\n");
return;
}
}
q = 0;
p = pAccountHead;
while(p != 0)
{
if(strcmp(p->number, number) == 0)
{
printf("firstName:%s middleName:%s lastName:%s account:%s balance:%d ", p->firstName, p->middleName, p->lastName, p->number, p->balance);
printf("\n");
return;
}
q = p;
p = p->pNext;
}
printf("查询账户%s失败!!!", number);
printf("\n");
}
void menu6()
{
struct Info *p = pAccountHead;
if(p == 0)
{
printf("没有账户信息");
printf("\n");
return;
}
do{
printf("firstName:%s middleName:%s lastName:%s account:%s balance:%d ", p->firstName, p->middleName, p->lastName, p->number, p->balance);
printf("\n");
p = p->pNext;
}while(p != NULL);
}
void main(int argc, char *argv[])
{
loadInfo();
while(1)
{
switch(showMenu())
{
case 0:
return;
case 1:
menu1();
break;
case 2:
menu2();
break;
case 3:
menu3();
break;
case 4:
menu4();
break;
case 5:
menu5();
break;
case 6:
menu6();
break;
default:
;
}
saveInfo();
}
}