将数字数组从旧范围转换到新范围，其中最低值的数字是100，最高值的数字是0？

function mapRange(x, oldMin, oldMax, newMin, newMax) {
  return newMin + ((x - oldMin) * (newMax - newMin)) / (oldMax - oldMin);
}

function transformArray(arr, oldMin, oldMax, newMin, newMax) {
  return arr.map(x => mapRange(x, oldMin, oldMax, newMin, newMax));
}

// 示例数组
const numbers = [30, 50, 70, 90];
const oldMin = Math.min(...numbers);
const oldMax = Math.max(...numbers);

const newMin = 100;
const newMax = 0;

const transformedNumbers = transformArray(numbers, oldMin, oldMax, newMin, newMax);
console.log(transformedNumbers); // 输出: [100, 75, 50, 25]