c语言字符串转化成16进制,c语言将数组转换为十六进制同值的字符串

#include #include typedef unsigned char BOOL_T;

typedef unsigned char U8_T;

typedef signed char S8_T;

typedef unsigned short U16_T;

typedef signed short S16_T;

typedef unsigned int U32_T;

typedef signed int S32_T;

typedef unsigned __int64 U64_T;

typedef signed __int64 S64_T;

typedef float F32_T;

typedef double F64_T;

typedef char * STR_T;

//将数组转换为十六进制同值的字符串

void arrayToStr(U8_T *buf, unsigned int buflen, U8_T *out)

{

U8_T strBuf[33] = {0};

U8_T pbuf[32];

U8_T i;

for(i = 0; i < buflen; i++)

{

sprintf(pbuf, "%02X", buf[i]);

strncat(strBuf, pbuf, 2);

}

strncpy(out, strBuf, buflen * 2);

out[buflen*2] = 0;

}

int main()

{

U8_T str[25] = {0x33,0x01,0x08,0x00,0x17,0x90,0x59,0x26};

U8_T *ptr;

arrayToStr(str, 8, ptr);

printf("结果：%s\n", ptr);

return(0);

}

运行结果：

封装，用函数调用(运行结果一样)

#include #include typedef unsigned char BOOL_T;

typedef unsigned char U8_T;

typedef signed char S8_T;

typedef unsigned short U16_T;

typedef signed short S16_T;

typedef unsigned int U32_T;

typedef signed int S32_T;

typedef unsigned __int64 U64_T;

typedef signed __int64 S64_T;

typedef float F32_T;

typedef double F64_T;

typedef char * STR_T;

U8_T arrayToStr(U8_T *buf, U8_T buflen, U8_T *out)

{

U8_T strBuf[33] = {0};

U8_T pbuf[32];

U8_T i;

for (i = 0; i < buflen; i++)

{

sprintf((char*)pbuf, "%02X", buf[i]);

strncat((char*)strBuf, (char*)pbuf, 2);

}

strncpy((char*)out, (char*)strBuf, buflen * 2);

out[buflen*2] = 0;

return (buflen * 2);

}

//封装调用函数

void fun()

{

U8_T str[25] = {0x33,0x01,0x08,0x00,0x17,0x90,0x59,0x26};

char ptr[33] = {0};//这个变量不能定义成指针，是指针会导致奔溃

//将数组转换为十六进制同值的字符串

arrayToStr(str, 8, ptr);

printf("结果：%s\n", ptr);

}

int main()

{

fun();

return(0);

}