摘要： A1=TRUNC(RAND()*108+1901) B1=TEXT(TRUNC(RAND()*12+1),"00") C1=IF(OR(B1=1,B1=3,B1=5,B1=7,B1=8,B1=10,B1=12),TEXT(TRUNC(RAND()*31+1),"00"),IF(OR(B1=4,B1= 阅读全文