C#常用自定义函数小结
本文实例总结了几个C#常用的自定义函数,非常实用。分享给大家供大家参考。具体如下:
1.将数组转成字符串
/// <summary> /// 将数组转成字符串 /// </summary> /// <param name="glue">分隔符</param> /// <param name="pieces">要字符串数组</param> private string Implode(char glue,string[] pieces) { string result = string.Empty; int count = pieces.Length; for (int i = 0; i < count;i++ ) { if(i==0){ result = pieces[i]; }else{ result = result + glue.ToString() + pieces[i]; } } return result; }
2.DateTime时间格式转换为Unix时间戳格式
/// <summary> /// DateTime时间格式转换为Unix时间戳格式 /// </summary> /// <param name=”time”></param> /// <returns></returns> private int ConvertDateTimeInt(System.DateTime time) { System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1)); return (int)(time - startTime).TotalSeconds; }
3.生成某个范围内的随机数
/// <summary> /// 获得某个范围内的随机数 /// </summary> /// <param name="start">随机数的下界</param> /// <param name="end">随机数的上界</param> /// <returns>[minValue, maxValue)范围内的随机整数</returns> private int GetRandomInt(int minValue, int maxValue) { Random r = new Random(Chaos_GetRandomSeed()); return r.Next(minValue, maxValue); } /// <summary> /// 加密随机数生成器,生成随机种子 /// </summary> /// <returns></returns> private static int Chaos_GetRandomSeed() { byte[] bytes = new byte[4]; System.Security.Cryptography.RNGCryptoServiceProvider rng = new System.Security.Cryptography.RNGCryptoServiceProvider(); rng.GetBytes(bytes); return BitConverter.ToInt32(bytes, 0); }
希望本文所述对大家的C#程序设计有所帮助
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