#define N 101
char str[N];
FILE *fp = fopen("D:\\demo.txt", "r");
fgets(str, N, fp);
#include <stdio.h>
#include <stdlib.h>
#define N 100
int main(){
FILE *fp;
char str[N+1];
if( (fp=fopen("d:\\demo.txt","rt")) == NULL ){
printf("Cannot open file, press any key to exit!\n");
getch();
exit(1);
}
while(fgets(str, N, fp) != NULL){
printf("%s", str);
}
fclose(fp);
system("pause");
return 0;
}
#include<stdio.h>
int main(){
FILE *fp;
char str[102] = {0}, strTemp[100];
if( (fp=fopen("D:\\demo.txt", "at+")) == NULL ){
printf("Cannot open file, press any key to exit!\n");
getch();
exit(1);
}
printf("Input a string:");
gets(strTemp);
strcat(str, "\n");
strcat(str, strTemp);
fputs(str, fp);
fclose(fp);
return 0;
}
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