求任意两个整数之间的随机整数

var min = 32,max = 78;
    // 78-32 = 46
    var randomNum = Math.ceil(Math.random() * (max - min)) + min;//向上取整
    // Math.floor(Math.random() * (max - min + 1)) + min;//向下取整要+1

    console.log(randomNum);