30-4

#include<stdio.h>
#include<string.h>

void main ()
{
	char matn[1024];
	char str[80];
	int i=23456;
	double A[200];
	FILE *f;

	f = fopen ("test.txt", "r");
	if (!f) { // f==NULL
		printf("Cannot open test.txt for writing.\n");
		return;
	}

	while (!feof(f)) {
		//fscanf(f, "%s", str);
		char *readOK = fgets(str, 79, f);
		if (readOK == NULL)
			break;
		if (str [ strlen(str)-1 ] == '\n')
			str [ strlen(str)-1 ] = 0;
		printf("%s\n", str);
	}
	//while (!feof(f)) {
	//	fscanf(f, "%d", &i);
	//	printf("%d\n", i);
	//}
	fclose(f);
}