为什么每个数据都应该有个“类型”和它对应？ 其实，计算机操纵的对象（数据）“类别”在表现形式上可以统一 01位串 但是 It is beneficial,however,to keep such types separate, not only for clarity and good order,but also because each type admits its own special set of allowed operations or actions为什么每个数据都应该有个“类型”和它对应？ 其实，计算机操纵的对象（数据）“类别”在表现形式上可以统一 It is beneficial, however, to keep such types separate, not only for clarity and good order, but also because each type admits its own special set of allowed operations or actions 但是 01位串