【磨刀砍柴】基础积累

1.python 生成8位随机字符(模拟生成四个十六进制数)

from string import join

from random import sample

join(sample('1234567890abcdef', 8)).replace

 

c实现：

char *p = (char *)calloc(9*sizeof(char));
for( n = 0; n < 4; ++n )
{
/*8位随机数str*/
int b = random()%255;
sprintf(p,"%02x",b);
p += 2;
}
*p = '\0';