今天的作业，想到可以直接由浮点数格式中取出尾数得到ShannanCode，麻烦点的地方是需要重新对阶，因为在尾数规格化省掉了一位，最终效率比较高。-Today s operation, I was thinking about floating-point format can be directly removed by the mantissa be ShannanCode, trouble point is the need to re-order, because in the mant