#include <stdio.h>int main() {

int i = 0,j = 0,k = 0;

char s[100],alab[100],alpha[100],other[100],*p;

printf("請輸入字串 : ");

gets(s);

p = s;

while(*p) {

if((*p >= "0") && (*p <= "9")) alab[i++] = *p;

else if((*p >= "a") && (*p <= "z")) alpha[j++] = *p;

else if((*p >= "A") && (*p <= "Z")) alpha[j++] = *p;

else other[k++] = *p;

++p;

}

alab[i] = "\0";

alpha[j] = "\0";

other[k] = "\0";

printf("阿拉伯數字串 : %s\n",alab);

printf("英文字串 : %s\n",alpha);

printf("其他字串 : %s\n",other);

return 0;

}