[  1-1  ]
What is called the file in which only textual information is written?

[  1-2  ]
The file in which only the numerical value is written
Especially what do call in distinction from the above-mentioned file?

[  2-1  ]
When you execute the following program
What value in what form is written in the file of what name?

 
#include <stdio.h> 

int main(void)  
{

	FILE *fp;  
	int dat[3] = { 10 , 20 , 30 };  
	
	fp = fopen("file.dat","wb");  
	fwrite(&dat,sizeof(dat),1,fp);  
	fclose(fp);  

	return 0;
}

[  3-1  ]

Number	Name	Average score of test
1	Nobi postponing Futoshi	0
2	[Minamotoshizuka]	90
3	Great physical strength [dentakeshi]	40
4	Bone river [sune] husband	70

Make this table and make even Excel the program made by the opened form.
The hint: Comma Separated Value opens any spreadsheet.

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Information that is sure to only have to be displayed on the display
Describe the file purposely concisely why.

[  1-1  ]
Text file

[  1-2  ]
Binary file

[  2-1  ]
The value such as 10, 20, and 30 is written in the file.dat file in the binary form.

[  3-1  ]

 
#include <stdio.h> 

int main(void) 
{

	FILE *fp; 
	
	fp = fopen("test.csv","w"); 
	
	Number..name..test..average score.  );
	Nobi..postpone.
	);
	Great physical strength.  );
	Bone..river..husband.
	
	fclose(fp); 

	return 0; 
}

- Though it specifies by the string literal here
  Of course, you may use the array etc.
- When the fclose function has been forgotten, it is assumed that it gives a demerit mark.

[  4-1  ]
Because it is possible to preserve when almost permanent, and it becomes easy to edit and to hand if it makes it to the file.