三个变量的完全组合应该有8种情况：
If([%A%]="" And [%B%]="" And [%C%]="","",
If([%A%]="" And [%B%]="" And [%C%] <> "",FilterFor("C","=",[%C%]),
If([%A%]="" And [%B%] <> "" And [%C%]="",FilterFor("B","=",[%B%]),
If([%A%] <> "" And [%B%]="" And [%C%]="",FilterFor("A","=",[%A%]),
If([%A%]="" And [%B%] <> "" And [%C%] <> "",FilterFor("B","=",[%B%],"C","=",[%C%]),
If([%A%] <> "" And [%B%] <> "" And [%C%]="",FilterFor("B","=",[%B%],"A","=",[%A%]),
If([%A%] <> "" And [%B%]="" And [%C%] <> "",FilterFor("A","=",[%A%],"C","=",[%C%]),
FilterFor("A","=",[%A%],"B","=",[%B%],"C","=",[%C%]))))))))
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Post By：2011/7/6 20:29:00 [显示全部帖子]
