生成均匀分布随机数，在此基础上 生成各种离散型随机变量随机数，有0-1分布，泊松分布，几何分布，二项分布等原理及代码-Uniformly distributed random number generation, on the basis of a variety of discrete random variables generated random numbers, there are 0-1 distribution, Poisson distribution, geometric di