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#include<stdio.h>
#include<stdlib.h>
void main(){
FILE *fp;
char c;
if((fp=fopen("d:\\123.txt","w+"))==NULL){
printf("can not open file!");
exit(0);}
c=getchar();
while(c!='\n'){
fputc(c,fp);
c=getchar();}
rewind(fp);
while(!feof(fp))
printf("%c",fgetc(fp));
fclose(fp);
}
#include<stdio.h>
#include<stdlib.h>
void main(){
FILE *fp;
char c;
if((fp=fopen("d:\\123.txt","w+"))==NULL){
printf("can not open file!");
exit(0);}
c=getchar();
while(c!='\n'){
fputc(c,fp);
c=getchar();}
rewind(fp);
c=fgetc(fp);
while(!feof(fp)){
printf("%c",c);
c=fgetc(fp);}
fclose(fp);
}