既然是学炒股吗，那看K线肯定是第一步了，现在网上有N多的教程，据说都是XXX原来的操盘手现在出来搞培训的，听了以后不免心潮澎湃，仿佛得了武林至高的绝学一样。
不过这里就有个问题了，那这些讲课的人讲的这些波形理论靠不靠谱呢？
很多人说，当然靠谱了。比如早晨十字星，第一天跌，第二天收十字星，说明多方和空方激烈争斗，我们第三天再确认一天，如果上涨了，那说明这只股票真的已经处于反弹状态了，这时候应该毫不犹豫的杀进去。
对于我们高IQ的程序员来说，最好的办法还是自己算一算，如果真的这么有用的话，一年200个交易日，至少有50天会有早晨十字星出现，要是管用的话，那未来5天内，股票涨5%，总可以吧。那样的话，一年下来就是1.05e50=11.47，投入100万，一年下来就是1147万了，那还辛辛苦苦讲什么课啊。有人说了，不可能每个都涨，我们假设有5/12涨，4/12持平，3/12下跌，那这样的收益是(1+0.05/6)e50=1.5，这样的收益已经算是很客观了，如果6年下来的话，也是1147万，那过日子也足够了。那到底这些图形靠不靠谱呢？
就让我们一个个的来算算，我这里就只算早晨十字星，早晨十字星定义如下：
public bool 是否早晨十字星(){//2日前的收盘价/2日前的开盘价<0.95//并且1日前的开盘价<2日前的收盘价//并且1日前的开盘价=1日前的收盘价//并且收盘价/开盘价>1.05//并且收盘价>2日前的收盘价using (SqlConnection connection = new SqlConnection(connString)){connection.Open();String SQL = String.Format("SELECT top 3 股票代码,[收盘价],[开盘价] FROM [DayData] WHERE 日期<='{0}' AND 股票代码='{1}' AND 收盘价 IS NOT NULL order by 日期 desc", thisDate.ToString("yyyy-MM-dd"), StockID);SqlCommand CMD = new SqlCommand(SQL, connection);var reader = CMD.ExecuteReader();if (!reader.Read()) return false;var open = Convert.ToDouble(reader["开盘价"]);var close = Convert.ToDouble(reader["收盘价"]);if (!reader.Read()) return false;var open_1dayBefore = Convert.ToDouble(reader["开盘价"]);var close_1dayBefore = Convert.ToDouble(reader["收盘价"]);if (!reader.Read()) return false;var open_2dayBefore = Convert.ToDouble(reader["开盘价"]);var close_2dayBefore = Convert.ToDouble(reader["收盘价"]);if (close_2dayBefore/open_2dayBefore<0.95&& open_1dayBefore<close_2dayBefore&& Math.Abs(open_1dayBefore-close_1dayBefore)<=0.05&& close/open>1.05&& close>close_2dayBefore) return true;return false;}}
经过计算，得出今年1-7月份的早晨十字星，然后再分别计算一下各个日期的5天收益率，得到结果如下：
日期股票代码未来5天收益率/1/136007785.92%/1/21600565-14.17%/2/3002084-9.98%/2/10600599-3.25%/3/10000066-28.77%/4/26008719.39%/4/1300256510.57%/4/170021385.06%/5/8600736-30.49%/5/1800262519.69%/5/18300312-30.35%/5/1830037732.51%/5/19000821-18.01%/5/26300120-17.03%/5/26300270-7.40%/5/26300288-11.52%/5/26600960-21.36%/6/1000014-32.28%/6/1000514-8.88%/6/1000573-25.86%/6/1000595-10.32%/6/1000682-11.22%/6/1000698-12.31%/6/1000709-9.04%/6/1000713-6.88%/6/100071610.08%/6/10007534.93%/6/1002131-4.67%/6/10023131.88%/6/1002526-2.81%/6/1002540-9.11%/6/1002566-10.72%/6/13001181.31%/6/1300172-3.20%/6/1300215-3.56%/6/1600005-13.16%/6/1600022-9.04%/6/1600207-18.28%/6/1600240-11.26%/6/1600261-1.87%/6/16003152.05%/6/1600569-13.41%/6/1600678-3.84%/6/1600800-23.83%/6/1600839-25.47%/6/1600864-0.87%/6/1600865-8.53%/6/1601558-3.16%/6/1601678-11.06%/6/1601958-12.19%/6/1030025014.22%/6/106004009.55%/6/10600501-12.34%/6/106006031.46%/6/230026738.92%/6/2300271320.00%/6/240009298.24%/6/2400093315.24%/6/2460009820.24%/6/2460040521.73%/6/246007132.22%/7/17000090-14.06%/7/17002291-9.97%/7/17002426-28.86%/7/17002607-8.46%/7/17300040-6.46%/7/17300116-6.30%/7/17300365-10.13%/7/20002607-8.46%
算下来大部分是跌的，平均跌幅是-5%,这还是在今年是牛市的基础上的，只能说早晨十字星真心的不靠谱。
