Question

我试图写一个带有两个输入值的sum数组函数。逐渐添加第一个输入值，直到达到第二个输入的值。例如，如果lowerLimit是＆＃39; 2＆＃39;而上限是＆＃39; 5＆＃39;总和将是2 +（2 + 1）+（2 + 2）+（2 + 3）+（2 + 4）+（2 + 5）= 27.我尝试使用变量＆＃ 39; I＆＃39;这是添加到lowerLimit并逐渐上升直到（i <=（upperLimit - lowerLimit）但我不确定如何写和数组，或者如果和数组甚至是接近这个的最佳方法。谢谢你的帮助。

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    <script>
        $(document).ready(function () {
            var lowerLimit = 0;
            var upperLimit = 0;

            function range(lowerLimit, upperLimit){
                var lowerLimit = parseInt(prompt("What number would you like to being with?"));
                if (isNaN(lowerLimit)) {
                    alert("That's not a number, please retry.");
                    var lowerLimit = prompt("Please re-enter a number.");
                }
                var upperLimit = parseInt(prompt("What number would you like to end with?"));
                if (isNaN(upperLimit)) {
                    alert("That's not a number, please retry.");
                    var upperLimit = prompt("Please re-enter a number.");
                }

             /*    var arr = [upperLimit, lowerLimit, i];
                for(i = 1; i <= (upperLimit - lowerLimit); i++){
                var equation = lowerLimit + (lowerLimit+i);

                }*/


            //ends function
            }
            //ends document ready function
        });
    </script>

Answer 1

数组的用途是什么？您可以直接添加它们并在不使用数组的情况下输出...

试试这段代码：

var sum=lowerLimit; for(i=1; i<=upperLimit; i++){ sum += (lowerLimit+i); }

Answer 2

抱歉，该代码存在错误

var sum=lowerlimit;
for(i=1; i<=upperLimit; i++){
  sum += (lowerLimit+i);
}

输入值增量的Sum数组

2 个答案: