REPORT z_get_last_day_of_month.
DATA: p_date LIKE sy-datum.
CALL FUNCTION 'LAST_DAY_OF_MONTHS'
EXPORTING
day_in = '20100205' "输入一个完整的日期
IMPORTING
last_day_of_month = p_date "输出:一个完整的日期,天数是这个月的最后一天
EXCEPTIONS
day_in_no_date = 1
OTHERS = 2.
WRITE p_date.
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