摘要： 这个其实不是问题，一般情况下倒是不会出问题的，代码如下：private string random_str(int length){ int number; string checkCode = String.Empty; int iSeed = 10; Random ro = new Random(10); long tick = DateTime.Now.Ticks; Random random = new Random((int)(tick & 0xffffffffL) | (int)(tick >> 32)); for (int i =... 阅读全文