//function sum(...rest){
//var count=0；
//rest.forEach(function(element)
//{if(typeof element='number')
//count=count+element;});
//return count;
//}
function sum(...rest) {
let result = 0;
for (let i = rest.length; i > 0; i--) {
result += rest.pop();
}
return result;
}
mayajing2378
//function sum(...rest){ //var count=0； //rest.forEach(function(element) //{if(typeof element='number') //count=count+element;}); //return count; //} function sum(...rest) { let result = 0; for (let i = rest.length; i > 0; i--) { result += rest.pop(); } return result; }