c语言将数组转换为十六进制同值的字符串

迷南。 2024-04-18 21:36 98阅读 0赞

#include <stdio.h>
    #include <stdlib.h>
    
    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：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQ3ODM3ODU_size_16_color_FFFFFF_t_70]

**封装，用函数调用**（运行结果一样）

#include <stdio.h>
    #include <stdlib.h>
    
    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);
    }

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQ3ODM3ODU_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20190912102238804.PNG?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQ3ODM3ODU=,size_16,color_FFFFFF,t_70