布爾標誌=真;
while(標誌)
{
buffered reader in = new buffered reader(new InputStreamReader(system . in));
string s = in . readline();
list.add
如果(" # ")。等於(s))
flag = false
}
list . remove(" # ");
String[]str = list . to array(new String[]{ });
Java . util . arrays . sort(str);
System.out.println("輸入最小字符:"+str[0]);
沒有處理異常,沒有考慮直接進入#