C語言char*字串數組和unsigned char[]數組的相互轉換__C語言

#include <iostream>#include <string>using namespace std;void convertUnCharToStr(char* str, unsigned char* UnChar, int ucLen){int i = 0;for(i = 0; i < ucLen; i++){//格式化輸str,每unsigned char 轉換字元佔兩位置%x寫輸%X寫輸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];//維數定義些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;}