如何打印出来 [英] how to print it out
问题描述
我有一个字符，
我想分别打印低4位和更高4位p
单独
我该怎么做？
非常感谢！
Hi I have a char p,
I''d like to print out the lower 4 bits and higher 4 bits of p
seperately
how can i do that?
Thanks a lot!
推荐答案
< po *********** @ gmail.com>在消息中写道
news：11 ********************** @ g14g2000cwa.googlegr oups.com ...
<po***********@gmail.com> wrote in message
news:11**********************@g14g2000cwa.googlegr oups.com...
我有一个字符，
我想分别打印出低4位和更高4位的页面
我该怎么做？
Hi I have a char p,
I''d like to print out the lower 4 bits and higher 4 bits of p
seperately
how can i do that?
Thanks a lot!
我更喜欢设置表格，但你不需要。如果你想要一个更简单的
方法，setup_bin_tab用来设置字符串表的逻辑可以是没有表的情况下使用的
。 nyb_l是nybble_lower等的简称（如果你理解了十六进制，你可以确定你的头部的位模式。）
Rod Pemberton
// - 工作 - 代码 -
#include< stdio.h>
#include< ; string.h>
#define nyb_l（a）（（a）& 0x0F）
#define nyb_u（a）（（（a） >>>>& 0x0F）
unsigned char bin_tab [16] [5];
void setup_bin_tab（void）
{
unsigned char i，j;
/ *为EOS设定nul'* /
memset（bin_tab，0，sizeof（bin_tab））;
for（i = 0; i< 16; i ++）
{
for（j = 0; j <4; j ++）
{
bin_tab [i] [j] =（i&（1<< ;（3-j）））？'''''：''0'';
}
}
}
int main（无效）
{
unsigned char p;
setup_bin_tab（）;
p = 0x82;
printf（"％02x％s％s \ n&quo t;，p，bin_tab [nyb_u（p）]，bin_tab [nyb_l（p）]）;
p = 0x5A;
printf（"％ 02x％s％s \ n"，p，bin_tab [nyb_u（p）]，bin_tab [nyb_l（p）]）;
return（0）;
}
I prefer to setup tables, but you don''t need to. If you want a simpler
method, the logic that setup_bin_tab uses to setup the string table can be
used without a table. nyb_l is short for nybble_lower, etc. (If you
understand hexadecimal, you can determine the bit patterns in your head.)
Rod Pemberton
//--working--code--
#include <stdio.h>
#include <string.h>
#define nyb_l(a) ((a)&0x0F)
#define nyb_u(a) (((a)>>4)&0x0F)
unsigned char bin_tab[16][5];
void setup_bin_tab(void)
{
unsigned char i,j;
/* set nul''s for EOS */
memset(bin_tab,0,sizeof(bin_tab));
for(i=0;i<16;i++)
{
for(j=0;j<4;j++)
{
bin_tab[i][j]=(i&(1<<(3-j)))?''1'':''0'';
}
}
}
int main(void)
{
unsigned char p;
setup_bin_tab();
p=0x82;
printf("%02x %s %s\n",p,bin_tab[nyb_u(p)],bin_tab[nyb_l(p)]);
p=0x5A;
printf("%02x %s %s\n",p,bin_tab[nyb_u(p)],bin_tab[nyb_l(p)]);
return(0);
}
po **** *******@gmail.com 写道：
嗨我有一个字符，
我想打印低4位以上4分p
我怎么能这样做？
非常感谢！
Hi I have a char p,
I''d like to print out the lower 4 bits and higher 4 bits of p
seperately
how can i do that?
Thanks a lot!
#include< stdio.h> ;
int main（无效）{
unsigned char p = 42; / *或其他* /
char hibits [5] = {''0''，'0''，'0''，'0''，0};
char lobits [5] = {''0''，'0''，'0''，'0''，0};
if（p> 127）{
hibits [0] =''1';
p - = 128;
}
if（p> 63）{
hibits [1] =''1';
p - = 64;
}
if（p> 31）{
hibits [2] =''1';
p - = 32;
}
if（p> 15）{
hibits [3] =''1';
p - = 16;
}
if（p> 7）{
lobits [0] =''1 '';
p - = 8;
}
if（p> 3）{
lobits [ 1] =''1'';
p - = 4;
}
if（p> 1）{
lobits [2] =''1'';
p - = 2;
}
if（p == 1 ）{
lobits [3] =''1'';
}
printf（" Hibits：％s \ n"，hibits）;
printf（" Lobits：％s \ n"，lobits）;
返回0;
}
-
如果您通过Google发布，请阅读< http://cfaj.freeshell.org/google> ;
#include <stdio.h>
int main(void) {
unsigned char p = 42; /* or whatever */
char hibits[5] = {''0'', ''0'', ''0'', ''0'', 0};
char lobits[5] = {''0'', ''0'', ''0'', ''0'', 0};
if (p > 127) {
hibits[0] = ''1'';
p -= 128;
}
if (p > 63) {
hibits[1] = ''1'';
p -= 64;
}
if (p > 31) {
hibits[2] = ''1'';
p -= 32;
}
if (p > 15) {
hibits[3] = ''1'';
p -= 16;
}
if (p > 7) {
lobits[0] = ''1'';
p -= 8;
}
if (p > 3) {
lobits[1] = ''1'';
p -= 4;
}
if (p > 1) {
lobits[2] = ''1'';
p -= 2;
}
if (p == 1) {
lobits[3] = ''1'';
}
printf("Hibits: %s\n", hibits);
printf("Lobits: %s\n", lobits);
return 0;
}
--
If you''re posting through Google read <http://cfaj.freeshell.org/google>
po ******** ***@gmail.com 写道：
嗨我有一个字符，
我想打印出p的低4位和高4位
单独
我该怎么做？
非常感谢！
Hi I have a char p,
I''d like to print out the lower 4 bits and higher 4 bits of p
seperately
how can i do that?
Thanks a lot!
我放弃了，你怎么样？你想怎么打印这些位？什么问题
你有尝试吗？跟我说话。给我看一些C代码。
-
Joe Wright
所有东西都应尽可能简单，但是并不简单。
---阿尔伯特爱因斯坦---
I give up, how can you? How do you want to print the bits? What problems
do you have when you try it? Talk to me. Show me some C code.
--
Joe Wright
"Everything should be made as simple as possible, but not simpler."
--- Albert Einstein ---
这篇关于如何打印出来的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
