传智黑马39期WEB前端教程-JavaScript基础语法-JavaScript数组及应用-求一组数的和和平均值

求一组数的和和平均值

var numbers = [35, 12, 35, 90, 11, 12];
var sum = 0;
var avg = 0;
for(var i = 0; i < numbers.length; i++) {
    sum += numbers[i];
}
avg = sum / numbers.length;
console.log('这组数的和:', + sum);
console.log('这组数的平均值:', + avg);