JS 产生随机数
发布时间:2022-04-19浏览次数:0
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export function randomNum(maxNum, minNum, decimalNum) {
let max
let min = 0
minNum <= maxNum ? ((min = minNum), (max = maxNum)) : ((min = maxNum), (max = minNum))
switch (arguments.length) {
case 1:
return Math.floor(Math.random() * (max + 1))
case 2:
return Math.floor(Math.random() * (max - min + 1) + min)
case 3:
return (Math.random() * (max - min) + min).toFixed(decimalNum)
default:
return Math.random()
}
}
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