A、可以在循环中的任何位置放置一个Exit For语句 B、step的值必须是整数,默认为1 C、For i=1 To 11 Step 3,这一行说明循环体最多可以执行4次 D、For?Next必须成对出现
A、Dim node As XmlNodeFor Each node In nodes node.Attributes(0).Value = "NA"Next node B、Dim node As XmlNodeFor Each node In nodes node.Attributes(1).Value = "NA"Next node C、Dim node As XmlNodeFor Each node In nodes Dim genre As XmlNode = node.SelectSingleNode("/genre") genre.Value = "NA"Next node D、Dim node As XmlNodeFor Each node In nodes Dim genre As XmlNode = node.SelectSingleNode("@genre") genre.Value = "NA"Next node E、Dim node As XmlNodeFor Each node In nodes Dim genre As XmlNode = node.SelectSingleNode("genre") genre.Value = "NA"Next node