说明：  实现了一个简单的花朵进化的模拟过程。 花朵的种群数量是10，共进化了50代。 通过运行程序，你会发现通过不断的进化，种群的总的适应环境的能力在逐步提高（fitness的值下降）。
(The realization of a simple simulation of the evolution of flowers. Flower populations of 10, a total of 50 on behalf of evolution. By running the program, you will find that through continuous evolution of the general population s ability to adapt to the environment gradually increase in the (fitness value decrease).)