var divBy2 = function(number,n){
var stack = new Stack(); //实例化队列
var yushu = 0;
var string2 = '';
var digits = '0123456789ABCDEF';
while(number > 0){
yushu = number % n;
stack.push(yushu);
number = Math.floor(number / n);
}
while(!stack.isEmpty()){
console.log(typeof digits)
string2+=digits[stack.pop()];
}
return string2;
}
console.log(divBy2(10,2))