找到没有数组的四个数字中的最低和最高

Question

我应该在不使用数组的情况下找到四个数字中的最高和最低数字。我怎么能这样做呢？

道歉，我忘了链接我的代码。

    var num1, num2, num3, num4;

num1 = prompt("Enter the first number.");
num2 = prompt("Enter the second number.");
num3 = prompt("Enter the third number.");
num4 = prompt("Enter the fourth number.");

if (num1 < num2)
{
    if (num1 < num3)
    {
        if (num1 < num4)
            {
                var lowest = num1;
            }
    }
}

Answer 1

将nr 1与nr比较2.将最大值保存为X.将X与nr比较3.将最高值再次保存为X.与nr比较4.将最高值保存为X，现在是最高数字。现在你可以弄清楚如何获得最低......

Answer 2

var num1, num2, num3, num4;

num1 = prompt("Enter the first number.");
num2 = prompt("Enter the second number.");
num3 = prompt("Enter the third number.");
num4 = prompt("Enter the fourth number.");

var highest=num1;

if (highest < num2)
{
    highest = num2;
}

if (highest < num3)
{
    highest = num3;
}

if (highest < num4)
{
    highest = num4;
}

alert(highest);

var lowest=num1;

if (lowest > num2)
{
   lowest = num2;
}

if (lowest > num3)
{
    lowest = num3;
}

if (lowest > num4)
{
    lowest = num4;
}

alert(lowest);