将产出的正态分布随机数、瑞丽分布随机数和泊松分布随机数用matlab绘制出相应的分布直方图和理论曲线，便于进一步分析(The normal distribution random number, Rayleigh distributed random number and Poisson distribution random number are plotted out by MATLAB, and the corresponding distribution histogram and theoretical curve are plotted for further analysis.)