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string bs = ",ABCDEF,12345678,888888,000000,AAAAAA,77777777,ABC123,";
if (bs.IndexOf("," + TextBox1.Text + ",") >= 0)
{
........
}
if (Array.IndexOf(new string[] {"ABCDEF", "12345678", "888888",
"000000", "AAAAAA", "77777777", "ABC123"}, textBox1.Text) >= 0)
{
MessageBox.Show("zswang 路过");
}
Array.Exists<string>(new string[] {
"ABCDEF", "12345678", "888888",
"000000", "AAAAAA", "77777777", "ABC123" },
new Predicate<string>(delegate(string s)
{
return s == textBox1.Text;
}));
if (!new System.Text.RegularExpressions.Regex(
@"^(ABCDEF)|(12345678)|(888888)|(000000)|(AAAAAA)|(77777777)|(ABC123)$").IsMatch(TextBox1.Text)) // 正确