说明：  　编一判断m是否为素数的函数，并在主函数中利用它输出十对最小的孪生素数。所谓孪生素数是指两个相差为2的素数
(Compile a judge m is a prime function of the number and use it in the main function output ten pairs of the smallest twin primes. The so-called twin primes refers to two differ by two primes)