程序语言设计3day EOF

输入输出字符

#include <stdio.h>
#include "tsk.h"

#define Hmax 300 //温度up limit
#define STEP 20
#define PINEOF //EOF打印标志

void main(void)
{
show();
//	testH2S();//华氏摄氏温度转换测试

#ifdef HELLO
printf("Hello world !\n");
printf("Hello world \t !\n");
printf("Hello world \b !\n");
printf("Hello world \" !\n");
printf("Hello world \\ !\n");
printf("Hello world \c !\n");
printf("Hello world \r !\n");
printf("Hello world \a !\n");
printf("Hello world \v !\n");
printf("Hello world \111 !\n");
printf("Hello world 123456789\n");
#endif
}

/*字符输入输出*/
void show(void)
{
#ifdef PINEOF
printf("EOF = %d\n", EOF);
#endif

int c;//虽然定义为整形，任意字符均能输入输出
c = getchar();
while (c != EOF)// EOF end of file
{
putchar(c);
c = getchar();
}
}

测试：

EOF = -1

fsf

fsf

rqr

rqr

rqwr

rqwr

小贴士：



/*字符输入输出*/
void show(void)
{
#ifdef PINEOF
printf("EOF = %d\n", EOF);
#endif
/*---检测字符输入个数---*/
for (; getchar() != EOF; n++)
;
printf("输入字符个数 %ld\n", n);//cmd 命令 Ctrl+c 进行检测
n = 0;
/*--------------------*/

int c;//虽然定义为整形，任意字符均能输入输出
c = getchar();
while (c != EOF)// EOF end of file
{
putchar(c);
c = getchar();
}
}