c#编程 这里的if continue与省略他们有何不同？

if (v.Status == VascularStatusEnum.Cancel)
continue;
if (sb.Length > 6)
sb.Append("、");
if (v.Status == VascularStatusEnum.Valid)
{
if (v.VascularType == VascularTypeEnum.APV)
{
sb.Append(v.VascularType.ToString());
}
else
{
sb.Append(HdisEnum.GetEnumText(v.VascularLocation) + " " + v.VascularType.ToString());
}
}
else if (v.Status == VascularStatusEnum.Prepare)
{
if (v.VascularType == VascularTypeEnum.APV)
{
sb.Append(v.VascularType.ToString());
}
else
{
sb.Append(HdisEnum.GetEnumText(v.VascularLocation) + " " + v.VascularType.ToString());
}
sb.Append(string.Format("（{0}）", v.OperateDate.ToString("yyyy-MM-dd")));
}

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