unsignedcharMD[16]; MD5((unsignedchar*)p,statbuf.st_size,MD);//获得MD5值 适用于mmap传输charbuffer[1000]={0};for(inti =0; i <16; i++) {//格式化输str,每unsigned char 转换字符占两位置%x写输%X写输sprintf(buffer + i*2,"%02x", MD[i]); }...
1.unsigned char*转换成const char* 先将unsigned char*转换成char*,再将char*转换成const char* unsignedchar*pstr;constchar* p = (constchar*)(char*)pstr; 2.const char*转换成unsigned char* constchar*p; unsignedchar* pstr = (unsignedchar*)p;...
int main(){ unsigned char src[6] = {0x12, 0x32,0x56,0x78,0x90,0xab};char buffer[20];//维数定义大些 for(int i=0;i<6;i++)sprintf( buffer+i*2,"%x",src[i]);//格式化输出到buffer,每个unsigned char 转换为字符后占两个位置，%x小写输出，%X大写输出 printf("%s\n",buf...
第三，由于在寄存器上生成了32位值，所以高位4字节自动置成0，覆盖原来高32位上存储的数据。
unsigned int转unsigned char,直接保留低位。比如unsigned int a=1(内存中是0x00000001),(unsigned char)a的值还是1(内存中是0x01,即仅保留了最低的8个位) char转int型(都是有符号型类型之间的转换),那就可能是负数转换,或者正数转换了。比如char a=0x01(因为高位为0,说明这是个正数了,而正数原码和补码一样...
(char)(((num>> i)&1)+'0');这一句取出num的第i位(i=0,1...)，lz写个循环把所有位打出来就可以了
char_value = (char)us_value; //现在char_value包含了unsigned short的低字节 在这个例子中,(char)是一个强制类型转换,它将unsigned short值转换为char。需要注意的是,这会导致截断,因为char类型通常是一个字节,而unsigned short通常是两个字节。所以,只有unsigned short的低字节被赋给了char。 从char到unsigned...
unsigned char s_des[100] = {0};int length = 9;unsigned char s_src[length] = {0xFE,0x01,0x52,0xFF,0xEF,0xBA,0x35,0x90,0xFA};unsigned char IntToHexChar(unsigned char c){ if (c > 9)return (c + 55);else return (c + 0x30);} int main(){ unsigned char ...
4. chargetChar(intx,inty){ 5. charc; 6. unsignedinta=x; 7. unsignedintb=a+y; 8. (a+y>10)?(c=1):(c=2); 9. returnc; 10. } 11. voidmain(){ 12. charc1=getChar(7,4); 13. charc2=getChar(7,3); 14. charc3=getChar(7,-7); ...