将不同长度的列表加在一起

function addLists(list1, list2) {
  var result = [];
  var maxLength = Math.max(list1.length, list2.length);
  
  for (var i = 0; i < maxLength; i++) {
    var num1 = list1[i] || 0; // 如果列表长度不足，用0填充
    var num2 = list2[i] || 0;
    result.push(num1 + num2);
  }
  
  return result;
}

var list1 = [1, 2, 3];
var list2 = [4, 5, 6, 7];
var sum = addLists(list1, list2);
console.log(sum); // 输出 [5, 7, 9, 7]

def add_lists(list1, list2):
    result = [num1 + num2 for num1, num2 in zip(list1, list2)]
    return result

list1 = [1, 2, 3]
list2 = [4, 5, 6, 7]
sum = add_lists(list1, list2)
print(sum)  # 输出 [5, 7, 9]