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/// /// 获得pc号 /// public static string GetPcsnString() { var pcsn = ""; try { var search = new Manage... 阅读全文
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1、增加字段(修改表)alter table 表名 ADD 字段 类型 NOT NULL Default 0 阅读全文
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string l_strResult = 你的字符串.Replace("\n", "").Replace(" ","").Replace("\t","").Replace("\r",""); 阅读全文
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string数组 string[] s1 = new string[3] { "John", "Paul", "Mary" }; string[] s1 = new string[3] { "John", "Paul", "Mary" }; if (s1.Contains("John")) if ( 阅读全文