1
#include <stdio.h>
#include <limits.h>
#include <string.h>
#define SLEN 33
//输入
char *s_gets(char *st, int n);
//二进制转换为int
void convert(char *st, int n, int *m);
int main()
{
char ch[SLEN];
int i;
int total;
puts("请输入二进制: ");
bk:while (s_gets(ch, SLEN) != NULL && ch[0] != '\0')
{
total = 0;
for (i = 0; ch[i] != '\0'; i++)
{
if (ch[i] != '0'&&ch[i] != '1')
{
fputs("错误: 二进制只能为 0 or 1, 请重新输入\n", stderr);
goto bk;
}
}
convert(ch, i-1, &total);
printf("二进制: %s\n", ch);
printf("10进制整数为: %d\n", total);
puts("请输入二进制[空行退出]: ");
}
puts("完成");
system("pause");
return 0;
}
void convert(char *st, int n, int *m)
{
int i;
int j = 1;
for (i = n; i >= 0; i--)
{
if (i < n)
j *= 2;
if (st[i] == '0')
*m += 0 * j;
else
*m += 1 * j;
}
}
char *s_gets(char *st, int n)
{
char *ret_val, *find;
ret_val = fgets(st, n, stdin);
if (ret_val)
{
find = strchr(st, '\n');
if (find)
*find = '\0';
else
while (getchar() != '\n')
continue;
}
return ret_val;
}
2
#include <stdio.h>
#include <limits.h>
#include <stdlib.h>
//二进制转换为整数
int convert(char *st, int n);
//整数转换为二进制字符串
char *itobs(int n, char * ps, int m);
int main(int argc, char *argv[])
{
char ch[CHAR_BIT * sizeof(int) + 1];
int a, b;
int i, j;
if (argc != 3)
{
fprintf(stderr, "用法: %s 二进制字符串 二进制字符串\n", argv[0]);
exit(EXIT_FAILURE);
}
for (i = 0; argv[1][i] != '\0'; i++)
{
if (argv[1][i] != '0'&&argv[1][i] != '1')
{
fputs("错误: 二进制只能为 0 or 1, 请重新输入\n", stderr);
exit(EXIT_FAILURE);
}
}
for (j = 0; argv[2][j] != '\0'; j++)
{
if (argv[2][j] != '0'&&argv[2][j] != '1')
{
fputs("错误: 二进制只能为 0 or 1, 请重新输入\n", stderr);
exit(EXIT_FAILURE);
}
}
a = convert(argv[1], i - 1);
b = convert(argv[2], j - 1);
printf("~%-32s = %s\n", argv[1], itobs(~a, ch, i));
printf("~%-32s = %s\n", argv[2], itobs(~b, ch, j));
printf("%s & %s = %s\n", argv[1], argv[2], itobs(a&b, ch, a > b ? a : b));
printf("%s | %s = %s\n", argv[1], argv[2], itobs(a | b, ch, a > b ? a : b));
printf("%s ^ %s = %s\n", argv[1], argv[2], itobs(a^b, ch, a > b ? a : b));
puts("完成");
return 0;
}
char *itobs(int n, char * ps, int m)
{
int i, j = 0;
static int size = CHAR_BIT * sizeof(int);
for (i = size - 1; i >= 0; i--, n >>= 1)
{
if (j < m)
ps[i] = (1 & n) + '0';
else
ps[i] = '0';
j++;
}
ps[size] = '\0';
return ps;
}
int convert(char *st, int n)
{
int i;
int j = 1;
int tot = 0;
for (i = n; i >= 0; i--)
{
if (i < n)
j *= 2;
if (st[i] == '0')
tot += 0 * j;
else
tot += 1 * j;
}
return tot;
}
3
#include <stdio.h>
#include <limits.h>
int count(int n);
int main()
{
int num;
puts("请输入一个整数:");
while (scanf_s("%d", &num) == 1)
{
printf("%d 打开位的数量 %d\n", num, count(num));
puts("请输入下一个整数[q退出]:");
}
puts("退出");
system("pause");
return 0;
}
int count(int n)
{
int i;
int tot = 0;
static int size = CHAR_BIT * sizeof(int);
for (i = size; i > 0; i--, n >>= 1)
{
if ((1 & n) == 1)
tot++;
}
return tot;
}
4
#include <stdio.h>
#include <limits.h>
//整数转二进制获取指定位的开关
int number(int n, int m);
int main()
{
int n;
int m;
puts("请输入一个整数:");
while (scanf_s("%d", &n) == 1)
{
puts("请输入需要查看的位:");
scanf_s("%d", &m);
printf("整数 %d 的 %d 位的值是 %d\n", n, m, number(n, m));
puts("请输入一个整数[q退出]:");
}
puts("完成");
system("pause");
return 0;
}
int number(int n, int m)
{
int i, j;
int num;
static int size = CHAR_BIT * sizeof(int);
for (i = size, j = 0; i > 0; j++, i--, n >>= 1)
{
if (j == m)
{
num = 1 & n;
break;
}
}
return num;
}
5
#include <stdio.h>
#include <limits.h>
void str(char *st, unsigned int n, unsigned int m);
int main()
{
char ch[CHAR_BIT * sizeof(int) + 1];
unsigned int x, y;
puts("请输入一个无符号整数:");
while (scanf_s("%ud", &x) == 1)
{
puts("请输入需要移动的位:");
scanf_s("%ud", &y);
str(ch, x, y);
printf("%s\n", ch);
puts("请输入一个无符号整数[q退出]:");
}
puts("完成");
system("pause");
return 0;
}
void str(char *st, unsigned int n, unsigned int m)
{
int i;
unsigned int tot;
static int size = CHAR_BIT * sizeof(int);
m %= size;
tot = (n >> (size - m)) | (n << m);
for (i = size - 1; i >= 0; i--, tot >>= 1)
{
st[i] = (1 & tot) + '0';
}
st[size] = '\0';
}
6
#include <stdio.h>
#include <stdbool.h>
//菜单
void menu(struct font *pst);
//丢失多余字符
void d_stdin();
//功能
int function(struct font *pst, char ch);
struct font
{
unsigned int id : 8;
unsigned int size : 7;
unsigned int : 1;
unsigned int aline : 2;
bool bold : 1;
bool italic : 1;
bool underline : 1;
unsigned int : 3;
};
char *option1[] = { "off","on" };
char *option2[] = { "left","center","right" };
int main()
{
char ch;
struct font list = { 1,12,0,false,false,false };
menu(&list);
while (scanf_s("%c", &ch, 1) == 1 && ch != 'q')
{
if (ch < 'a' || ch > 'z')
{
d_stdin();
printf("错误: 请输入菜单正确的选项\n");
continue;
}
if (function(&list, ch) == 0)
{
d_stdin();
printf("错误: 请输入菜单正确的选项\n");
continue;
}
putchar('\n');
menu(&list);
d_stdin();
}
system("pause");
return 0;
}
int function(struct font *pst, char ch)
{
int n = 0;
int size;
char a;
switch (ch)
{
case 'f':
puts("请输入字体的大小[0-255]:");
scanf_s("%d", &size);
pst->id = size & 255;
n = 1;
break;
case 's':
puts("请输入字体的大小[0-127]:");
scanf_s("%d", &size);
pst->size = size & 127;
n = 1;
break;
case 'a':
d_stdin();
puts("请选择对齐方式:");
puts("l. left \tc. center \tr. right");
scanf_s("%c", &a, 1);
if (a == 'l')
pst->aline = 0;
else if (a == 'c')
pst->aline = 1;
else if (a == 'r')
pst->aline = 2;
else
puts("错误: 输入错误不做任何修改");
n = 1;
break;
case 'b':
pst->bold = true;
n = 1;
break;
case 'i':
pst->italic = true;
n = 1;
break;
case 'u':
pst->underline = true;
n = 1;
break;
default:
break;
}
return n;
}
void menu(struct font *pst)
{
printf("ID SIZE ALIGNMENT B I U\n");
printf("%-3d %3d %8s %-3s %-3s %-3s\n", pst->id, pst->size, option2[pst->aline], option1[pst->bold], option1[pst->italic], option1[pst->underline]);
puts("f. 更改字体 \ts. 更改大小 \ta. 更改对齐");
puts("b. 切换粗体 \ti. 切换斜体 \tu. 切换下划线");
puts("q. 退出");
}
void d_stdin()
{
while (getchar() != '\n')
continue;
}
7
#include <stdio.h>
#define ID 0x1
#define SIZE 0xC00
#define SIZE_MAX 0x7f
#define ALINE_L 0x00000
#define ALINE_C 0x10000
#define ALINE_R 0x20000
#define ALINE_MAX 0x3
#define BOLD 0x40000
#define BOLD_MAX 0x1
#define ITALIC 0x80000
#define ITALIC_MAX 0x1
#define UNDERLINE 0x100000
#define UNDERLINE_MAX 0x1
typedef unsigned long font;
//菜单
void menu(font *pst);
//清空输入行
void d_stdin();
//功能
int function(font *pst, char ch);
char *option1[] = { "off","on" };
char *option2[] = { "left","center","right" };
int main()
{
font list;
list = ID | SIZE ;
char ch;
menu(&list);
while (scanf_s("%c", &ch, 1) == 1 && ch != 'q')
{
if (ch < 'a' || ch > 'z')
{
d_stdin();
printf("错误: 请输入菜单正确的选项\n");
continue;
}
if (function(&list, ch) == 0)
{
d_stdin();
printf("错误: 请输入菜单正确的选项\n");
continue;
}
putchar('\n');
menu(&list);
d_stdin();
}
system("pause");
return 0;
}
int function(font *pst, char ch)
{
font temp1, temp2, temp3;
int n = 0;
int size;
char a;
switch (ch)
{
case 'f':
puts("请输入字体的大小[0-255]:");
scanf_s("%d", &size);
temp1 = *pst >> 8;
*pst &= temp1 << 8;
*pst |= size & 255;
n = 1;
break;
case 's':
puts("请输入字体的大小[0-127]:");
scanf_s("%d", &size);
temp1 = *pst >> 16;
temp2 = *pst << 24;
temp3 = (temp1 << 16) | (temp2 >> 24);
*pst &= temp3;
*pst |= (size & 127) << 8;
n = 1;
break;
case 'a':
d_stdin();
puts("请选择对齐方式:");
puts("l. left \tc. center \tr. right");
scanf_s("%c", &a, 1);
temp1 = *pst >> 18;
temp2 = *pst << 16;
temp3 = (temp1 << 18) | (temp2 >> 16);
*pst &= temp3;
if (a == 'l')
*pst |= ALINE_L;
else if (a == 'c')
*pst |= ALINE_C;
else if (a == 'r')
*pst |= ALINE_R;
else
puts("错误: 输入错误不做任何修改");
n = 1;
break;
case 'b':
temp1 = *pst >> 19;
temp2 = *pst << 14;
temp3 = (temp1 << 19) | (temp2 >> 14);
*pst &= temp3;
*pst |= BOLD;
n = 1;
break;
case 'i':
temp1 = *pst >> 20;
temp2 = *pst << 13;
temp3 = (temp1 << 20) | (temp2 >> 13);
*pst &= temp3;
*pst |= ITALIC;
n = 1;
break;
case 'u':
temp1 = *pst >> 21;
temp2 = *pst << 12;
temp3 = (temp1 << 21) | (temp2 >> 12);
*pst &= temp3;
*pst |= UNDERLINE;
n = 1;
break;
default:
break;
}
return n;
}
void menu(font *pst)
{
printf("ID SIZE ALIGNMENT B I U\n");
printf("%-3d %3d %8s %-3s %-3s %-3s\n", *pst & 255, *pst >> 8 & SIZE_MAX, option2[*pst >> 16 & ALINE_MAX], option1[*pst >> 18 & BOLD_MAX], option1[*pst >> 19 & ITALIC_MAX], option1[*pst >> 20 & UNDERLINE_MAX]);
puts("f. 更改字体 \ts. 更改大小 \ta. 更改对齐");
puts("b. 切换粗体 \ti. 切换斜体 \tu. 切换下划线");
puts("q. 退出");
}
void d_stdin()
{
while (getchar() != '\n')
continue;
}
