正数,非负数,整数,负数,非正数,非负整数如题分类.-2.5,314,-2,+72,-0.26,0.618,七分之二十,0,-0.1

问题描述:

正数,非负数,整数,负数,非正数,非负整数
如题分类.-2.5,314,-2,+72,-0.26,0.618,七分之二十,0,-0.1