JZ31-整数中1出现的次数
整数中1出现的次数（从1到n整数中1出现的次数）
https://www.nowcoder.com/practice/bd7f978302044eee894445e244c7eee6?tpId=13&tags=&title=&diffculty=0&judgeStatus=0&rp=1&tab=answerKey
class Solution {
public int NumberOf1Between1AndN_Solution(int n) {
if (n <= 0) {
return 0;
}
int count = 0;
for (int i = 1; i <= n; i++) {
int temp = i;
while (temp > 0) {
if (temp % 10 == 1) {
count++;
}
temp = temp / 10;
}
}
return count;
}
} https://leetcode-cn.com/problems/1nzheng-shu-zhong-1chu-xian-de-ci-shu-lcof/solution/mian-shi-ti-43-1n-zheng-shu-zhong-1-chu-xian-de-2/
