选择本项目作业的同学，必须本人独立完成。

功能：

1、 打开文件

2、 保存文件

3、 能够对文件进行查找

4、 能够对文件进行替换

5、 能够对文件进行删除

要求：

1、 不能使用Cstring.h，string等类，只能使用char*来处理字符串

2、 能够动态的申请和分配内存

上交的内容：

1、.cpp、.h、.exe文件

2、文件命名规则：学号.cpp 学号.h 学号.exe

程序具体要求：

1、 在命令行下运行  学号.exe出现界面如下

2、 按输入参数

a) -o filename 打开文件

b) –h 帮助信息，提示各个参数的格式和含义

c) –s filename 保存文件到filename指定的路径和文件名

d) –f stringtofind 查找stringtofind字符串，并将查到的字符串的个数在屏幕上显示，并将个数写到文件  学号_result.txt中，路径和最后-s中的filename同一个路径

e) –r sourcestring targetstring 替换字符串，将文件中的sourcestring替换成targetstring,将替换多少处显示在屏幕上，并将替换的个数和替换后的文本都写道  学号_result.txt中，路径要求同上

f) –d stringtodelete 删除字符串，将文件中的stringtodelete删除,将删除多少处显示在屏幕上，并将删除的个数和删除后的文本都写到  学号_result.txt中，路径要求同上

g) –q 退出程序

3、 当前文件的问题：

sample：

打开了c:\aaa.txt

在-d删除之后，再执行-r时是要在原来的aaa.txt上进行-r操作，即不受-d的影响

一旦执行了-s

当前的文件就变成了-s保存的结果

如：打开c:\aaa.txt

在-d删除之后，执行了-s

再执行-r时就是要在删除之后的文本上进行-r操作了

4、 学号_result.txt

这个文件每次写都是在文件的最后追加，不要覆盖原来的内容

要求所有的次数独占一行，写法为：-f10     -r29 -d3

所有的文本写完后空两行

sample:

#include

#include

#include

#include

typedef struct text

{

char *h;

int sn,wn,nn,len;

}Text,*ttext;

char *ctmp;

int help();

int save();

int findstr();

int rep();

int chLen(char *);

int chCo(char *, char *, int );

int del();

void resultbulid(char ,int ,int );

char filename[20]={0};

char *result="1253007_result.txt";

char spos[200];

void buildspos(char *);

long strl(char *);

void strcpy(char *,char* );

void strcat(char *,char *);

int main(int argc ,char *argv[])

{

ctmp=(char*)calloc(2000,sizeof(ctmp));

char a;

char s[100];

int i=1;

FILE* fp;

while(i)

{

scanf("%s",s);

if(!strcmp("-o",s))

scanf("%s",filename);

else

if((fp=fopen(filename,"r"))!=NULL)

{ if(!strcmp("-h",s))

help();

else if(!strcmp("-s",s))

save();

else if(!strcmp("-f",s))

findstr();

else if(!strcmp("-r",s))

rep();

else if(!strcmp("-d",s))

del();

else if(!strcmp("-q",s))

break;

else

printf("error\n");

}

else

if(!strcmp("-h",s))

help();

else if(!strcmp("-q",s))

break;

else

printf("cannot open the file");

}

fclose(fp);

remove("temp.p");

return 0;

}

int help()

{

printf("-o filename 打开文件\n");

printf("-h 帮助信息\n");

printf("-s filename 保存文件到指定路径和文件名\n");

printf("-f stringtofind 查找stringtofind字符串，并将个数保存至文件\n");

printf("-r sourcestring targetstring 替换字符，将sourcestring替换成targetstring，并保存替换的个数\n");

printf("-d stringtodelete 删除stringtodelete字符串，并保存删除的个数\n");

printf("-q 退出程序\n");

}

void strcat(char *s,char *p)

{

int i=strl(s),j;

for (j=0;j<=strl(p);j++)

{

s[i+j]=p[j];

}

}

void buildspos(char *s)

{

int i,j;

for (i=0;i<200;i++)spos[i]=0;

for (i=strl(s)-1;i>=0;i--) if (s[i]==0x5c) break;

for (j=0;j<=i;j++)

spos[j]=s[j];

}

long strl(char *s)

{

long i=0;

for (;s[i]!='\0';i++);

return i;

}

void strcpy(char *s,char* p)

{

int i;

for (i=0;i

s[i]=p[i];

}

int save()

{

FILE *fp,*tp;

char savename[200];

scanf("%s",savename);

fp=fopen(savename,"w");

tp=fopen("temp.p","r");

while (fgets(ctmp,2000,tp)!=NULL)

{

fputs(ctmp,fp);

}

fclose(tp);

fclose(fp);

buildspos(savename);

strcat(spos,result);

tp=fopen("result.p","r");

fp=fopen(spos,"w");

while (fgets(ctmp,2000,tp)!=NULL)

{

fputs(ctmp,fp);

}

strcpy(filename,savename);

fclose(tp);

fclose(fp);

free(tp);

free(fp);

remove("result.p");

}

long pos[200],totp;

long strcp(char *tt,char *pp)

{

totp=0;

int i=0,j=0;

while (i

{

if (tt[i]==pp[j])

{

i++;

j++;

if (j==strl(pp))

{

totp++;

pos[totp]=i-j;

i++;j=0;

}

}

else {

i=i-j+1;j=0;}

}

return totp;

}

int findstr()

{

FILE *p;

p=fopen(filename,"r");

char c[100];

int i=0,j=0,ct=0,k;

scanf("%s",c);

while (fgets(ctmp,2000,p)!=NULL)

{

ctmp[strl(ctmp)-1]='\0';

ct+=strcp(ctmp,c);

}

fclose(p);

free(p);

printf("%d\n",ct);

resultbulid('f',ct,0);

}

int rep()

{

char fin[300],source[20],target[20];

int i,j,k,m,ct=0;

scanf("%s %s",source,target);

FILE *out,*p;

out=fopen("temp.p","w");

p=fopen(filename,"r");

while (fgets(ctmp,2000,p)!=NULL)

{

ctmp[strl(ctmp)-1]='\0';

ct+=strcp(ctmp,source);

k=1;

for (i=0;i

{

if (i==pos[k])

{

fprintf(out,"%s",target);

k++;

i=i+strl(source);

}

else fprintf(out,"%c",ctmp[i]);

}

fprintf(out,"\n");

}

fclose(out);

fclose(p);

printf("%d\n",ct);

free(out);

free(p);

resultbulid('r',ct,1);

}

int chLen(char *s)

{

int i = 0;

do

{

i++;

}while(s[i]!='\0');

return i;

}

int chCo(char *s, char *d, int len)

{

int i;

for(i=0; i

{

if(s[i] != d[i])

{

return 0;

}

}

return 1;

}

int del()

{

char fin[300],source[20],target[20];

int i,j,k,m,ct=0;

scanf("%s",source);

FILE *out,*p;

out=fopen("temp.p","w");

p=fopen(filename,"r");

while (fgets(ctmp,2000,p)!=NULL)

{

ctmp[strl(ctmp)-1]='\0';

ct+=strcp(ctmp,source);

k=1;

for (i=0;i

{

if (i==pos[k])

{

k++;

i=i+strl(source);

}

else fprintf(out,"%c",ctmp[i]);

}

fprintf(out,"\n");

}

fclose(out);

fclose(p);

printf("%d\n",ct);

free(out);

free(p);

resultbulid('d',ct,1);

}

void resultbulid(char p,int tot,int pri)

{

FILE *fp=fopen("result.p","a");

fprintf(fp,"-%c %d\n",p,tot);

if (pri)

{

FILE *tp=fopen("temp.p","r");

while (fgets(ctmp,2000,tp)!=NULL)

fputs(ctmp,fp);

fclose(tp);

free(tp);

}

fprintf(fp,"\n");

fclose(fp);

free(fp);

}

#include

#include

#define LEN sizeof(struct node)

struct node

{

char data;

struct node *next;

}*head1, *p1, *p2,*head2;

char *temp[100],sources[100],target[100]; //这个指针数组用来存那些配上对的链表的地址

char result[100]={0};

char **point;

void help();

void open(char *);

void Save(char *);

int search(struct node *&head,char *stringtofind);

int replace(struct node *head,node *&head1,char *sources,char *target);

int delet(struct node *head,node *&head2,char *sources);

void buildhead(struct node *head,char *);

void ArrayToList(char *,struct node *);

void print(node *,char *,char *);

void Listdel(node *&);

void initlization();

long strl(char *s);

void resultpath(char *);

int m;

int n;

int h;

int sourcestringlength;char *a[10],b[6]={'\r','\n','\r','\n','\r','\n'};

char now[255],filename[100]={0},savename[100]={0};

struct node *pos[200000][2];

FILE *fp;

int main()

{

initlization();

FILE *fp;

int i=0;

char ch;

int ILength=0;

while (1)

{

char a[7][35]= {"-o","-h","-s","-f","-r","-d","-q"};

printf("Please enter your choice:\n");

char order[5];

scanf("%s",order);

if(order[1]==a[0][1])

{

scanf("%s",filename);

open(filename);

print(head1,"CON","w");

continue;

}

if(order[1]==a[1][1])

{

help();continue;

}

if(order[1]==a[2][1])

{

scanf("%s",filename);

Save(filename);

continue;

}

if(order[1]==a[3][1])

{

char *stringtofind;FILE *cp;

stringtofind=(char *)malloc(100*sizeof(char));

scanf("%s",stringtofind);

m= search(head1,stringtofind);

printf("%d\n",m);

freopen("result.t","a",stdout);

printf("-f%d\n\n",m);

freopen("CON","w",stdout);

continue;

}

if(order[1]==a[4][1])

{

scanf("%s %s",sources,target);

n= replace( head1, head2,sources,target);

printf("%d\n",n);

print(head2,"CON","w");

freopen("result.t","a",stdout);

printf("-r%d\n",n);

print(head2,"result.t","a");

freopen("result.t","a",stdout);

printf("\n");

freopen("CON","w",stdout);

continue;

}

if(order[1]==a[5][1])

{

scanf("%s",sources);

n=delet(head1,head2,sources);

print(head2,"CON","w");

printf("%d\n",n);

freopen("result.t","a",stdout);

printf("-r%d\n",n);

print(head2,"result.t","a");

freopen("result.t","a",stdout);

printf("\n");

freopen("CON","w",stdout);

continue;

}

if (order[1]==a[6][1])

return 0;

}

fclose(fp);

putchar(10);

return 0;

}

void buildhead(struct node *head,char *filename)

{

freopen(filename,"r",stdin);

int k;

char c;

struct node *p,*q;

q=head;

head->data='\0';

c=getchar();

while (c!=EOF)

{

q->data=c;

k++;

p=(struct node*)malloc(sizeof(struct node));

q->next=p;

p->next=NULL;

q=p;

c=getchar();

}

freopen("CON","r",stdin);

}

void open(char *filename)

{

Listdel(head1);

if((fp=fopen(filename,"r"))==NULL)

printf("cannot open this file\n");

buildhead(head1,filename);

buildhead(head2,filename);

freopen("result.t","w",stdout);

freopen("CON","w",stdout);

return;

}

void Save(char *savename)

{

node *p=head2;

freopen(savename,"w",stdout);

while (p->next!=NULL)

{

printf("%c",p->data);

p=p->next;

}

resultpath(savename);

open("result.t");

print(head1,result,"w");

freopen("CON","w",stdout);

open(savename);

}

void print(node *head,char *poss,char *arg)

{

node *p=head;

freopen(poss,arg,stdout);

while (p->next!=NULL)

{

printf("%c",p->data);

p=p->next;

}

}

void help()

{

struct Choices

{

char name[30*2];

char form[20*2];

char meaning[60*2];

};

int i;

Choices cho[7]=

{

{"-o filename","字符串","打开文件"},

{"-h","字符","帮助信息"},

{"-s filename","字符串", "保存文件"},

{"-f stringtofind","字符串","查找字符串"},

{"-r sourcestring targetstring","字符串","替换字符串"},

{"-d stringtodelete","字符串","删除字符串"},

{"-q","字符","退出"}

};

for (i=0; i<7; i++)

printf("%s %s %s\n",cho[i].name,cho[i].form,cho[i].meaning);

return;

}

int search(struct node *&head1,char *stringtofind) //k为查找到的个数 0:not found

{

int i,j,k;

k=0;

int length=0;

while(stringtofind[length]!='\0')

length++;

struct node *p1,*p2;

p1=p2=(node *)malloc(sizeof(LEN));

if(head1==NULL)

{

printf("\nlist null!\n");

return 0;

}

p1=head1;

int judge=0;

p2=p1;

j=0;

while(p1->next!=NULL)

{

if (p1->data==stringtofind[j])

{

p1=p1->next;

j++;

if (j==length)

{

k++;

pos[k][0]=p2;

pos[k][1]=p1;

p1=p2->next;

p2=p1;

j=0;

}

}

else

{

p1=p2->next;

p2=p1;

j=0;

}

}

return k;

}

void ArrayToList(char *s,struct node *head)

{

int length=0;

node *p,*q;

head->next=NULL;

p=head;

head->data='\0';

while (s[length]!='\0')

{

p->data=s[length];

q=(node *)malloc(sizeof(node));

q->next=NULL;

q->data='\0';

p->next=q;

p=q;

length++;

}

}

int replace(struct node *head,struct node *&head1,char *sources,char *target)

{

Listdel(head2);

int i=0;

sourcestringlength=0;

while(sources[i]!='\0')

{

i++;

sourcestringlength++;

}

int m=search(head,sources);

node *temp;

temp=(node *)malloc(sizeof(node));

ArrayToList(target,temp);

node *start,*temp1,*headd,*qq,*pp;

headd=(node*)malloc(sizeof(node));

start=head;

headd->next=NULL;

qq=headd;

i=1;

while (start->next!=NULL)

{

if (start==pos[i][0])

{

start=pos[i][1];

temp1=temp;

i++;

while (temp1->next!=NULL)

{

qq->data=temp1->data;

pp=(node *)malloc(sizeof(node));

pp->next=NULL;

qq->next=pp;

pp->data=0;

qq=pp;

temp1=temp1->next;

}

}

else

{

qq->data=start->data;

pp=(node *)malloc(sizeof(node));

pp->next=NULL;

qq->next=pp;

pp->data=0;

qq=pp;

start=start->next;

}

}

head1=headd;

return m;

}

int delet(struct node *head,node *&head2,char *scources)

{

int i;

m=search(head,sources);

replace(head,head2,sources,"");

return m;

}

void Listdel(node *&head)

{

node *p=head,*q;

while (p->next!=NULL)

{

q=p->next;

free(p);

p=q;

}

head=(node*)malloc(sizeof(node));

head->data='\0';

head->next=NULL;

}

void initlization(){

head1=(node*)malloc(sizeof(node));

head2=(node*)malloc(sizeof(node));

head1->data=head2->data='\0';

head1->next=NULL;head2->next=NULL;}

void resultpath(char *savename)

{

int i,j,length=strl(savename);char a[20]="1253012_result.txt";

for (i=0;i<100;i++)result[i]=0;

for (i=length-1;i>=0;i--)

if (savename[i]=='\\') break;

j=0;

for (j=0;j<=i;j++)result[j]=savename[j];

int k=0;

while (k

{

result[j]=a[k];

j++;k++;

}

}

long strl(char *s)

{

long i=0;

for (i=0;s[i]!='\0';i++);

return i;

}