function?[md]?=fun_date（ydays）
%?NOTES:
%?-?This?function?was?originally?produced?by?Ming?Shen.
%
????%?本函數將年積日轉換為正常日期
????if?days????????m=1;
????????d=days;
????else?if?days????????m=2;
????????d=days-fun_AnnualDay（?y21）+1;
?????????else?if?days?????????????????m=3;
?????????????????d=days-fun_AnnualDay（?y31）+1;
?????????????else?if?days?????????????????????m=4;
?????????????????????d=days-fun_AnnualDay（?y41）+1;
?????????????????else?if?days??????????????????????m=5;
??????????????????????d=days-fun_AnnualDay（?y51）+1;
?????????????????????else?if?days?????????????????????????????m=6;
?????????????????????????????d=days-fun_AnnualDay（?y61）+1;
?????????????????????????else?if?days?????????????????????????????????m=7;
?????????????????????????????????d=days-fun_AnnualDay（?y71）+1;
?????????????????????????????else?if?days?????????????????????????????????????m=8;
?????????????????????????????????????d=days-fun_AnnualDay（?y81）+1;
?????????????????????????????????else?if?days?????????????????????????????????????????m=9;
?????