How many digits are needed to write all of the integers from 1 to 1000 inclusive?(请写明过程)

问题描述:

How many digits are needed to write all of the integers from 1 to 1000 inclusive?(请写明过程)

写出所有的1-1000内的整数需要多少个数字?
Ten.
1
234
567
890
希望能帮到.