09/06/25 21:57:43
>>28 課題4
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#define FILENAMELEN 64
#define BUFFSIZE 128
int main(void)
{
FILE *ifp, *ofp;
char filename[FILENAMELEN];
char buff[BUFFSIZE];
*strchr(fgets(filename, FILENAMELEN, stdin), '\n') = '\0';
ifp = fopen(filename, "r");
*strchr(fgets(filename, FILENAMELEN, stdin), '\n') = '\0';
ofp = fopen(filename, "w");
while (fgets(buff, BUFFSIZE, ifp)) {
int i;
for (i = 0; buff[i]; ++i) if (isdigit(buff[i])) buff[i] = '*';
fprintf(ofp, buff);
}
fclose(ifp); fclose(ofp);
return 0;
}