在数的家族中,有一个非常特殊而内容又丰富的数,它就是0。我们知道0是正负数的分界点,是个非正非负的中性数。它大于一切负数,小于一切正数。0不能作除数,0没有倒数,0的相反数仍是0。(0=-0),0的绝对值也仍是0。(|0|=0),任何非0数的0次方是1。 In the family of numbers, there is a very special and abundant number, which is 0. We know that 0 is the demarcation point of positive and negative numbers, and it is a non-negative and non-negative neutral number. It is greater than all negative numbers, less than all positive numbers. 0 cannot be a divisor, 0 has no reciprocal, and the opposite of 0 is still 0. (0=-0), the absolute value of 0 is still 0. (|0|=0), any non-zero number 0 is 1.