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string strCode = " 123 456 789 ";
strCode = strCode.Trim();
string[] strCodes = strCode.Split(' ');
if (strCodes.Length > 1)
{
Alert("有空格!");
}
string strCode = " 123 456 789 ";
strCode = strCode.Trim();
string[] strCodes = strCode.Split(' ');
if (strCodes.Length > 1)
{
Alert("有空格!");
}