填空题

以下程序的输出结果是 [9] 。 include＜iostream.h＞ include ＜string.h＞ void main 0 { char s[50]; strcpy(&s[O], "No" ); strcpy(&s[1], "123" ); strcpy (&s[2], "23456" ); cout＜＜s; }