C/C++——С±à̸CÓïÑÔº¯ÊýÄÇЩÊÂ(7)
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1. fgetcº¯Êý
fgetcº¯ÊýµÄ¹¦ÄÜÊÇ´ÓÁ÷ÖжÁÈ¡×Ö·û£¬ÆäÓ÷¨ÊÇ£ºint fgetc(FILE *stream); ³ÌÐòÀý×ÓÈçÏ£º
#include <string.h>
#include <stdio.h>
#include <conio.h>
int main(void)
{
FILE *stream;
char string[] = "This is a test";
char ch;
/* open a file for update */
stream = fopen("DUMMY.FIL", "w+");
/* write a string into the file */
fwrite(string, strlen(string), 1, stream);
/* seek to the beginning of the file */
fseek(stream, 0, SEEK_SET);
do
{
/* read a char from the file */
ch = fgetc(stream);
/* display the character */
putch(ch);
} while (ch != EOF);
fclose(stream);
return 0;
}
2. fgetcharº¯Êý
fgetcharº¯ÊýµÄ¹¦ÄÜÊǹرմò¿ªÁ÷£¬ÆäÓ÷¨ÊÇ£ºint fgetchar(void); ³ÌÐòÀý×ÓÈçÏ£º
#include <stdio.h>
int main(void)
{
char ch;
/* prompt the user for input */
printf("Enter a character followed by \
<Enter>: ");
/* read the character from stdin */
ch = fgetchar();
/* display what was read */
printf("The character read is: '%c'\n",
ch);
return 0;
}
3. freadº¯Êý
freadº¯ÊýµÄ¹¦ÄÜÊÇ´ÓÒ»¸öÁ÷ÖжÁÊý¾Ý£¬ÆäÓ÷¨ÊÇ£ºint fread(void *ptr, int size, int nitems, FILE *stream); ³ÌÐòÀý×ÓÈçÏ£º
#include <string.h>
#include <stdio.h>
int main(void)
{
FILE *stream;
ch
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Á´±í¶¨Òå¼°²Ù×÷µÄÔ´Îļþ£ºemployee.h
//
#pragma once
#ifndef __EMPLOYEE_H__
#define __EMPLOYEE_H__
#include<stdio.h>
#include<malloc.h>
typedef struct employee{
int id;
int age;
int salary;
}EmpType;
typedef struct Node{
EmpType data;
struct Node *next;
}L ......
vaϵÁкêµÄÓ÷¨µÄÒ»°ã²½Ö裺
vsptr(char *format, ...) //ÇмǴ˴¦µÄ¸ñʽ
{
va_list argptr;
va_start(argptr, format); //ʹµÃargptrÖ¸ÏòÒÔformat¿ªÍ·µÄ´æ´¢¿Õ¼ä
va_arg(argptr, type); //È¡´«µÝµÄ²ÎÊý
......
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ÓÃÃüÁîÐÐÔËÐУºlua test.lua
lua: error loading modules 'dllforlua' from file './dllforlua.dll':
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1. fcloseº¯Êý
fcloseº¯ÊýµÄ¹¦ÄÜÊǹرÕÒ»¸öÁ÷£¬ÆäÓ÷¨ÊÇ£ºint fclose(FILE *stream); ³ÌÐòÀý×ÓÈçÏ£º
#include <string.h& ......