一串16进制数怎么转换为字符串

[mine3396]

例如 char a[12]={0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,}
转换为字符串 "0102030405060708090a0b0c"

[嘎文]

使用sprintf函数,好久没用了，你查一下用法吧

[Vector_fz]

char a[12]={0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,}
char buf[32]={0} ;
char tmp[4] ={0} ;
for(int i = 0 ; i<12;i++)
{
sprintf(temp,"%02x" ,a[i]) ;
strcat(buf,tmp) ;
}

[Shrek_MyCpp]

	char a[12]={0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c};
	char sz[200] = {0};
	for (int i = 0; i < 12; ++ i)
	{
	    sprintf(sz + 2*i, "%02x", a[i]);
	}

[pengzhixi]

sprintf就不错

[编程-鸟人-_--]

sprintf();
如果是MFC下,可以用CString::Format();

[Jim_King_2000]

#include <string>
#include <iostream>
#include <functional>
#include <algorithm>

using namespace std;

class PrintHex : public unary_function<char, void>
{
public:
	explicit PrintHex(string &str) : str_(str) {}

	result_type operator()(argument_type x)
	{
		str_.append(1, HexStr[((x & 0xf0) >> 4)]);
		str_.append(1, HexStr[(x & 0x0f)]);
	}

private:
	string &str_;
	static const char HexStr[];
};

const char PrintHex::HexStr[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};

#define ARRAY_SIZE(X) (sizeof(X)/sizeof(X[0]))

int main(int argc, char* argv[])
{
	string str;
	char a[12] = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c};
	for_each(a, a + ARRAY_SIZE(a), PrintHex(str));
	cout << str << "\n";
	return 0;
}

[赵4老师]

char a[12]={0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,}
char buf[25];
buf[0]=0;
for(int i = 0 ; i<12;i++)
{
sprintf(buf,"%s%02x" ,buf ,a[i]) ;
}