如何能随机生成两种状态之一，与概率红色所产生的10％的时间，而绿色所产生的90％的时间？
How can I randomly generate one of two states, with the probability of 'red' being generated 10% of the time, and 'green' being generated 90% of the time?
每2秒一个绿色或红色指示灯将闪烁。
Every 2 second either a green or a red light will blink.
此序列将持续5分钟。
This sequence will continue for 5 minutes.
出现一个闪烁的光的总数应为300。
The total number of occurrences of a blinking light should be 300.
推荐答案Random.NextDouble返回一个数字0和1之间，所以下面应该工作：
Random.NextDouble returns a number between 0 and 1, so the following should work:
if (random.NextDouble() < 0.90) { BlinkGreen(); } else { BlinkRed(); }