/************found************/
void fun (char *s, char *t, char u)
{ int i, j, sl, tl;
sl = slen(s); tl = slen(t);
for (i=0; i { for (j=0; j if (s[i] == t[j]) break;
/************found************/
if (j>tl)
*u = s[i];
}
*u = '\0';
}

main()
{ char s[100], t[100], u[100];
clrscr();
printf("\nPlease enter sing s:"); scanf("%s", s);
printf("\nPlease enter sing t:"); scanf("%s", t);
fun(s, t, u);
printf("the result is: %s\n", u);
}
===========================================
所需数据 :
===========================================
#2
@1 001010
void fun (char *s,char *t, char *u)
void fun (char *s,char *t, char u[])
void fun (char *s,char *t, char u[100])
fun (char *s,char *t, char *u)
fun (char *s,char *t, char u[])
fun (char *s,char *t, char u[100])
fun (char s[],char t[], char u[])
fun (char s[100],char t[100], char u[100])
void fun (char s[],char t[], char u[])
void fun (char s[100],char t[100], char u[100])
@2 001006
if(j>=tl)
if(tl<=j)
if(!(jif(!(tl>j))
if(j==tl)
if(tl==j)