采用余数法产生一组[0，1]分布的随机数，产生一个N(0,1)正态分布随机数，产生n个N(a,b)正态分布随机数-Produced by a group of more than a few method [0,1] distributed random numbers to generate a N (0,1) normally distributed random numbers, resulting in n-N (a, b) normal random number