小时的公式写:int(DATESUBDATE(b6,a6,"s")/3600)分钟的公式写:int((DATESUBDATE(b6,a6,"s")-int(DATESUBDATE(b6,a6,"s")/3600)*3600)/60)秒的公式写:DATESUBDATE(b6,a6,"s")-(int(DATESUBDATE(b6,a6,"s")/3600))*3600-(int((DATESUBDATE(b6,a6,"s")-int(DATESUBDATE(b6,a6,"s")/3600)*3600)/60))*60组合的公式写:CONCATENATE(c6,"小时",d6,"分钟",e6,"秒")