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·¢ÏÖ¸öÈ«¾Ö±äÁ¿Óë¾Ö²¿±äÁ¿µÄÇø±ð:
[code=C/C++]
char** t;
main()
{
char c[1];
char** t1;
sprintf(c,"%d",t);
printf("t=%s---\n",c);
if(strcmp(c,"0")!=0)
{
printf("t is Not Null\n");
}
sprintf(c,"%d",t1);
printf("t1=%s---\n",c);
if(strcmp(c,"0")!=0)
{
printf("t1 is Not Null\n");
}
}
[/code]
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//¿âº¯ÊýʵÏÖ
char *strcat (char *dst, const char *src)
{
char *p = dst;
while (*p)
p++;
while ((*p++ = *src++))
;
return dst;
}
char *strncat (char *s1, const char *s2, long unsigned int n)
{
char *dest = s1;
  ......