用C语言编写随机信号的产生：包括均匀分布，高斯分布，二项式分布，锐利分布， 对数高斯分布，泊松分布，拉普拉斯等分布。-Using C language of the generated random signal: including uniform distribution, Gaussian distribution, binomial distribution, a sharp distribution, logarithm Gaussian distribution, Poisso