function FindNumsAppearOnce(array)
{
    // write code here
    // return list, 比如[a,b]，其中ab是出现一次的两个数字
    let o  = {}
    array.forEach((item,index)=>{
        if(!o[item]){
            o[item] = 1
        }else{
            o[item]++
        }
    })
    console.log(o)
    let list = []
    for(let i in o){
        if(o[i]%2!==0){
            list.push(i)
        }
    }
    return list
}
module.exports = {
    FindNumsAppearOnce : FindNumsAppearOnce
};