请写出源代码
第1个回答 推荐于2017-10-03
#include <stdio.h>
#include <ctype.h>
int main()
{
int c;
FILE *fp;
if ((fp = fopen("mytext.txt", "rt")) == NULL)
{
fprintf(stderr, "open file failure!\n");
return 1;
}
while ((c = fgetc(fp)) != EOF)
putchar(toupper(c));
return 0;
}本回答被提问者采纳
#include <ctype.h>
int main()
{
int c;
FILE *fp;
if ((fp = fopen("mytext.txt", "rt")) == NULL)
{
fprintf(stderr, "open file failure!\n");
return 1;
}
while ((c = fgetc(fp)) != EOF)
putchar(toupper(c));
return 0;
}本回答被提问者采纳