标准函数~
#include <stdlib.h>
char *_itoa( int value, char *string, int radix );
char *_ltoa( long value, char *string, int radix );
value - 整数值
string - 输出字符串
radix - 进制,2至36
例子:
#include <stdlib.h>
#include <stdio.h>
void main( void )
{
char buffer[20];
int i = 3445;
long l = -344115L;
unsigned long ul = 1234567890UL;
_itoa( i, buffer, 10 );
printf( "String of integer %d (radix 10): %s\n", i, buffer );
_itoa( i, buffer, 16 );
printf( "String of integer %d (radix 16): 0x%s\n", i, buffer );
_itoa( i, buffer, 2 );
printf( "String of integer %d (radix 2): %s\n", i, buffer );
_ltoa( l, buffer, 16 );
printf( "String of long int %ld (radix 16): 0x%s\n", l,
buffer );
_ultoa( ul, buffer, 16 );
printf( "String of unsigned long %lu (radix 16): 0x%s\n", ul,
buffer );
}
Output
String of integer 3445 (radix 10): 3445
String of integer 3445 (radix 16): 0xd75
String of integer 3445 (radix 2): 110101110101
String of long int -344115 (radix 16): 0xfffabfcd
String of unsigned long 1234567890 (radix 16): 0x499602d2
int main() {
char ch = 'a';
short s = 11;
int i = 12;
long l = 123456789;
double d = 14.4;
long double ld = 15.55;
printBin(ch);
printBin(s);
printBin(i);
printBin(l);
printBin(d);
printBin(ld);
system("pause");
return 0;
}