Leaders should take a look at this how change,

//from a specific file read information 
Createlink struct Node * (void) 
{
Struct Node * phead=(struct Node *) malloc (sizeof (struct Node)); 
Struct Node * ptail; 
Struct Node * pnew; 
Ptail=pnew=phead; 
The FILE * fp=fopen (" book. TXT ", "r"); 
If (fp==NULL) 
{
Printf (" failed to open file!" ); 
return NULL; 
} 
while(! The feof (fp)) 
{
Pnew=(struct Node *) malloc (sizeof (struct Node)); 
Fread (& amp; Pnew - & gt; N, pnew - & gt; N, sizeof (pnew - & gt; N), fp); 
The fgets (pnew - & gt; The name, sizeof (pnew - & gt; Name), fp); 
The fgets (pnew - & gt; Place, sizeof (pnew - & gt; Place), fp); 
The fgets (pnew - & gt; The writer, sizeof (pnew - & gt; Writer), fp); 
Fread (& amp; Pnew - & gt; Price, pnew - & gt; Price, sizeof (pnew - & gt; Price), fp); 
Ptail - & gt; Next=pnew; 
Pnew - & gt; Next=NULL; 
Ptail=pnew; 
} 
fclose(fp); 
Return phead; 
} 


//to write information into the specific file 
Void WriteToFile (struct Node * phead) 
{
Struct Node * write; 
Write=phead - & gt; next; 
FILE *fp; 
If ((fp=fopen (" book. TXT ", "w"))==NULL) 
{
Printf (" open failure! \ n \ n "); 
exit(0); 
} 
while(NULL!=write) 
{
Fwrite (& amp; The write - & gt; N, the write - & gt; N, sizeof (write - & gt; N), fp); 
The fputs (write - & gt; The name, fp); 
The fputs (write - & gt; Place, fp); 
The fputs (write - & gt; Writer, fp); 
Fwrite (& amp; The write - & gt; Price, the write - & gt; Price, sizeof (write - & gt; Price), fp); 
Write=write - & gt; next; 
} 
If (fclose (fp)) 
{
Printf (" can't shut down! \n"); 
exit(0); 
} 
} 

CodePudding user response:

Fwrite (& amp; The write - & gt; N, the write - & gt; N, sizeof (write - & gt; N), fp);
The fputs (write - & gt; The name, fp);
The fputs (write - & gt; Place, fp);
The fputs (write - & gt; Writer, fp);
Fwrite (& amp; The write - & gt; Price, the write - & gt; Price, sizeof (write - & gt; Price), fp)

Fwrite (write, sizeof (struct Node), 1, fp);

CodePudding user response:

reference 1st floor CHXCHXKKK response:

fwrite (& amp; The write - & gt; N, the write - & gt; N, sizeof (write - & gt; N), fp);
The fputs (write - & gt; The name, fp);
The fputs (write - & gt; Place, fp);
The fputs (write - & gt; Writer, fp);
Fwrite (& amp; The write - & gt; Price, the write - & gt; Price, sizeof (write - & gt; Price), fp)

Fwrite (write, sizeof (struct Node), 1, fp);

This I see don't quite understand,,, bother details

CodePudding user response:

The whole structure is as a piece of writing, rather than a a written inside