[课程设计]可设置8个闹钟时间的智能时钟(C)

                                                  else         alarm[cur_alarm_set].h=tmp
                                                 }
                          else if(show_status==3)
                                    { month--
                             if(month==0)  month=12
                                            else if(show_status==4)
                           { tmp=min-1
                            if(tmp<0) min=59
                                          break
                        case 0xf3: if(show_status==0)          //闹钟设置的“分钟”减1
                                             { tmp=alarm[cur_alarm_set].m-1
                                               if(tmp<0)    alarm[cur_alarm_set].m=59
                                                  else         alarm[cur_alarm_set].m=tmp
                                                 }
                          else if(show_status==3)
                                    { day--
                             if(day==0)  day=31
                                            else if(show_status==4)
                           { tmp=sec-1
                             count_down=8000
                             if(tmp<0) sec=59
                                            break
                        case 0xfd: if(show_status==0)                       //切换周末标志
                                      alarm_wk^=0x1<<cur_alarm_set
                                            break
                        case 0xfe: if(show_status==0)                 //切换启用标志
                                      alarm_en^=0x1<<cur_alarm_set
                       }       //end of switch(attr)
                      return
                     }         //end of if(keytmp==2)
                if(keytmp==8 & led_on)    //第四个按钮，仅当数码管打开时有效
                 { switch(attr)
                      { case 0xff: if(show_status==1)               //如果当前显示日期

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本文关键字：智能  课程  自动控制-单片机，电子制作 - 自动控制-单片机