创建类Hugeinteger（大整数），使用40个元素的数组保存每个长度最大为40位的整数，每个元素表示一位。提供方法：inputHugeintteger，outputHugeinteger，addHugeintegers，substractHugeinteger，isEqualTo，isNotEqualTo，isGreatThan，isLessThan和判断方法isZero。-create Hugeinteger category (large integers), the use of 40 elements in each array to preserve maximum length of 40 integers, each expressed an element. Provision : inputHugeintteger, outputHugeinteger, addHugeintegers, substractHugeinteger, isEqualTo, isNotEqualTo, isGreatThan, isLessThan isZero methods and judgment.