大家帮忙看看，关于文件操作的
#include <stdio.h>
#include <stdlib.h>
#define NUM 100
struct employee
{
char no[5]; /* 职工号 */
char name[8]; /* 姓名 */
char sex[3]; /* 性别:男或女 */
int age; /* 年龄 */
int salar; /* 工资 */
}emp[NUM];
int main()
{
FILE *fp;
int n, i;
if ( ( fp = fopen( "e:\\emp.txt ", "w ") ) == NULL )
{
printf( "can 't creat emp.txt file\n " );
exit ( 1 );
}
printf( "Please input the number of employee: " );
scanf( "%d ", &n );
printf( "input format:NO. name sex age salar <Enter> \n " );
for ( i = 0; i < n; i++ )
{
printf( "the %dth employee: ", i+1 );
scanf( "%s%s%s%d%d ", emp[i].no, emp[i].name, emp[i].sex, &emp[i].age, &emp[i].salar );
}
for ( i = 0; i < n; i++ );
fwrite( &emp[i], sizeof(struct employee), 1, fp );
fclose( fp );
system( "pause " );
return 0;
}
输入完成后，我在E盘下打开emp.txt文件看都是0，并不是我输入的结果。
请问怎么做才能在打开文件时看到我输入的结果？
[解决办法]
#include <stdio.h>
#include <stdlib.h>
#define NUM 100
struct employee
{
char no[5]; /* 职工号 */
char name[8]; /* 姓名 */
char sex[3]; /* 性别:男或女 */
int age; /* 年龄 */
int salar; /* 工资 */
}emp[NUM];
int main()
{
FILE *fp;
int n, i;
if ( ( fp = fopen( "e:\\emp.txt ", "w ") ) == NULL )
{
printf( "can 't creat emp.txt file\n " );
exit ( 1 );
}
printf( "Please input the number of employee: " );
scanf( "%d ", &n );
printf( "input format:NO. name sex age salar <Enter> \n " );
for ( i = 0; i < n; i++ )
{
printf( "the %dth employee: ", i+1 );
scanf( "%s%s%s%d%d ", emp[i].no, emp[i].name, emp[i].sex, &emp[i].age, &emp[i].salar );
printf( "%s %s %s %d %d\n ",emp[i].no, emp[i].name, emp[i].sex, emp[i].age, emp[i].salar);
fprintf(fp, "%s %s %s %d %d\n ",emp[i].no, emp[i].name, emp[i].sex, emp[i].age, emp[i].salar);
}
fclose( fp );
system( "PAUSE ");
return 0;
}
[解决办法]
文本显示的话 一般显示字符char
jixingzhong(瞌睡虫·星辰) 做的就是这个步骤
而你是自定义类型的，我做了一下可以的
for ( i = 0; i < n; i++ )
{
printf( "the %dth employee: ", i+1 );
scanf( "%s%s%s%d%d ", emp[i].no, emp[i].name, emp[i].sex, &emp[i].age, &emp[i].salar );
printf( "%s %s %s %d %d\n ",emp[i].no, emp[i].name, emp[i].sex, emp[i].age, emp[i].salar);
fprintf(fp, "%s %s %s %d %d\n ",emp[i].no, emp[i].name, emp[i].sex, emp[i].age, emp[i].salar);
fwrite( &emp[i], sizeof(struct employee), 1, fp );//新加的
}
比如你输入 id huang mal 12 12
由 fwrite( &emp[i], sizeof(struct employee), 1, fp ；得到
id mal c c //12的十六进制是 c
