putw

putw ：C語言函式名: 功 能: 把一字元或字送到流中 ，用 法: int putw(int w, FILE *stream);

函式名: putw
功 能: 把一字元或字送到流中
用 法: int putw(int w, FILE *stream);
程式例:
#include <stdio.h>
#include <stdlib.h>
#define FNAME "test.$$$"
int main(void)
{
FILE *fp;
int word;
/* place the word in a file */
fp = fopen(FNAME, "wb");
if (fp == NULL)
{
printf("Error opening file %s\n", FNAME);
exit(1);
}
word = 94;
putw(word,fp);
if (ferror(fp))
printf("Error writing to file\n");
else
printf("Successful write\n");
fclose(fp);
/* reopen the file */
fp = fopen(FNAME, "rb");
if (fp == NULL)
{
printf("Error opening file %s\n", FNAME);
exit(1);
}
/* extract the word */
word = getw(fp);
if (ferror(fp))
printf("Error reading file\n");
else
printf("Successful read: word = %d\n", word);
/* clean up */
fclose(fp);
unlink(FNAME);
return 0;
}