/* will student information read from the file */

Void IO_ReadInfo () 
{
FILE *fp; 
int i; 
If ((fp=fopen (" Database. TXT ", "rb"))==NULL) 
{
Printf (" can't open the file! \n"); 
return; 
} 
If (fread (& amp; Num, sizeof (int), 1, fp)! 
=1){
Num=1; 
} 
The else 
{
for(i=0; i{
Fread (& amp; Students [I], sizeof (struct Student), 1, fp); 
} 
} 
fclose(fp); 
} 



/* the students information written to the file */

Void IO_WriteInfo () 
{
FILE *fp; 
int i; 
If ((fp=fopen (" Database. TXT ", "wb"))==NULL) 
{
Printf (" can't open the file! \n"); 
return; 
} 
If (fwrite (& amp; Num, sizeof (int), 1, fp)! 
=1){
Printf (" written to the file error! \n"); 
} 
for (i=0; i{
If (fwrite (& amp; Students [I], sizeof (struct Student), 1, fp)! 
=1){
Printf (" written to the file error! \n"); 
} 
} 
fclose(fp); 
} 

For a great god help change in the input and output of a text file, not binary

CodePudding user response:

Less likely to file operations, and a great spirit

CodePudding user response:

The write and read it's not a problem, you should be somewhere else

CodePudding user response:

Correct, read
part of the modified

/* will student information read from the file */

Void IO_ReadInfo () 
{
FILE *fp; 
int i; 
If ((fp=fopen (" Database. TXT ", "rb"))==NULL) 
{
Printf (" can't open the file! \n"); 
return; 
} 
If (fread (& amp; Num, sizeof (int), 1, fp)! 
=1){
Num=0; 
} 
The else 
{
for(i=0; i{
Fread (& amp; Students [I], sizeof (struct Student), 1, fp); 
} 
} 
fclose(fp); 
} 

If it is 1, your subscript began from 1