LINUX C练习1

//如何将一个ASCII码的数据,分解为其两位16进制字符型数据,保存在一个字符数组中
#include <stdio.h>
#include <string.h>
#include <unistd.h>

int http_encode(char c,char *out)
{
int  j = 0;
char hex_table[16] = "0123456789abcdef"; 

out[j] = hex_table[c >> 4];
    j++;
out[j] = hex_table[c & 0x0f];
    j++;
out[j] = '\0';

return 0;
}


int main()
{
char c;
    printf("Please input:");
    scanf("%c",&c);

char outurl[10] = "";
    http_encode(c,outurl);
    printf("*0x%s*\n",outurl);

return 0;
}