求从1到n这n个整数的十进制表示中1出现的次数

#include<stdio.h> void main() { int i_num; int number; printf("请输入一个正整数： "); scanf("%d",&i_num); int i = 0, j = 0; for (i = 0; i <= i_num; i++) { number = i; while (number) { if (number % 10 == 1) { printf("%d\n", i); break; } number = number / 10; } } }