tscanf.c

来自「单片及c语言轻松入门的随书光盘」· C语言 代码 · 共 35 行

#include <reg52.h>
#include <stdio.h>
void tst_scanf (void) {
	char a;
	int b;
	long c;
	unsigned char x;
	unsigned int y;
	unsigned long z;
	float f,g;
	char d, buf [10];
	int argsread;
	printf ("Enter a signed byte, int, and long\n");
	argsread = scanf ("%bd %d %ld", &a, &b, &c);
	printf ("%d arguments read\n", argsread);
	printf ("Enter an unsigned byte, int, and long\n");
	argsread = scanf ("%bu %u %lu", &x, &y, &z);
	printf ("%d arguments read\n", argsread);
	printf ("Enter a character and a string\n");
	argsread = scanf ("%c %9s", &d, buf);
	printf ("%d arguments read\n", argsread);
	printf ("Enter two floating-point numbers\n");
	argsread = scanf ("%f %f", &f, &g);
	printf ("%d arguments read\n", argsread);
}
void main()
{	SCON  = 0x50;    /*SCON:工作模式1，8-bit UART，允许接收*/
	TMOD |= 0x20;    /*TMOD：定时器T1，工作模式2, 8位自动重载方式*/
	TH1   = 0xf3;    /*当波特率为2400时，定时器初值*/
	TR1   = 1;       /*定时器T1开始运行*/
	TI    = 1;       /*允许发送数据*/
	for(;;)
		tst_scanf();
}