C语言char *转数组 C语言char*字符串数组和unsigned char[]数组的相互转换

#include

#include

using namespace std;

void convertUnCharToStr(char* str, unsigned char* UnChar, int ucLen)

{

int i = 0;

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

{

//格式化输str,每unsigned char 转换字符占两位置%x写输%X写输

sprintf(str + i * 2, "%02x", UnChar[i]);

}

}

void convertStrToUnChar(char* str, unsigned char* UnChar)

{

int i = strlen(str), j = 0, counter = 0;

char c[2];

unsigned int bytes[2];

for (j = 0; j < i; j += 2)

{

if(0 == j % 2)

{

c[0] = str[j];

c[1] = str[j + 1];

sscanf(c, "%02x" , &bytes[0]);

UnChar[counter] = bytes[0];

counter++;

}

}

return;

}

int main()

{

unsigned char src[6] = {0x12, 0x32,0x56,0x78,0x90,0xab};

char buffer[20];//维数定义些

convertUnCharToStr(buffer, src, 6);

printf("%s\n", buffer);

unsigned char dst[6];

int len = strlen(buffer);

cout << len << endl;

convertStrToUnChar(buffer, dst);

int i = 0;

for(i = 0; i < 6; i++)

{

printf("%x ", dst[i]);

}

cout << endl;

return 0;

}