显示页面过去修订反向链接Copy this page回到顶部 反向链接 这里是能够反向链接到当前页面的其他页面列表。 Attach a sequence flow to any side of the activity boxDisconnected sequence flows not allowedMake parallel merge explicitMake parallel split explicitModel handover by a sequence flowAvoid sequence flows overlappingTime should flow left to rightMain process flow in a properly organized diagram tends to be V-shaped