题解 | #整数中1出现的次数（从1到n整数中1出现的次数）#

function NumberOf1Between1AndN_Solution(n)
{
    // write code here
    let arr =[];
    let point = 0;
    let ret = 0;
    while(n-point>0){
        arr.push(n-point);
        point++;
    }
    arr.join('').split('').forEach(item=>{
        if(item === '1'){
            ret++
        }

    })
    return ret
}
module.exports = {
    NumberOf1Between1AndN_Solution : NumberOf1Between1AndN_Solution
};