一般来说用int型变量超过2^31的数就会溢出。此程序是利用数组对长度很长的整形字符串进行加减操作，并且进行自动测试的例子-int type generally used more than two variables ^ 31 a few will overflow. This procedure is the use of an array of very long length of plastic strings Modified operation, as well as automa