| 摘要 |
<p>PURPOSE:To identify a centurial year value from a year consisting of two digits by defining a year display value as a value expressing the lower two digits of a dominical year in the 1st range when the year display value coincides with a value belonging to a value group consisting of values constituted of two digits, and when it does not agree with the value, defining the year display value as a value expressing the lower two digits of the dominical year included in the 2nd range. CONSTITUTION:In the case of identifying a centurial year in a dominical year having a year display value on its lower two digits from the year display value consisting of decimal two digits, whether the year display value coincides with a value belonging to the value group consisting of one or more values constituted of prescribed two digits or not. When it does not agree with the value, the year display value is processed as a value expressing the lower two digits of a dominical year included in the 1st range, and at the time of discrepancy, the year display value is processed as a value expressing the lower two digits of a dominical year included in the 2nd range not overlapped to the 1st range and the identified result of the centurial year including the dominical year specified by the year display value is outputted. Thus, the stored value is kept at the lower two digits of the dominical layer and the centurial year can be identified from the value consisting of two digits in the year display without adding information to be stored.</p> |
