在 JavaScript 中生成指定范围内的随机数
本教程介绍了如何在 JavaScript 中的指定范围内生成随机数。我们将使用 Math.random()
函数生成随机数,然后将其移动到指定范围内的数字。
该函数返回浮点伪随机数,范围在 0
(包括)到 1
(不包括)之间,并且在该范围内具有大致均匀的分布。但是它不会返回密码安全的数字。
{{ % step %}}
{{ % /step %}}
function getRandomIntInclusive(min, max) {
min = Math.ceil(min);
max = Math.floor(max);
return Math.floor(Math.random() * (max - min + 1) + min);
}
getRandomIntInclusive(2,5);
输出:
4
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