阅读下面这首古诗，按要求答题。
                                                                                                                   山中留客
                                                                                                                       张旭
                                                                                                 山光物态弄春晖，莫为轻阴便拟归。
                                                                                                 纵使晴明无雨色，进云深处亦沾衣。