返回n个min到max的不重复随机数

function fn(n,min,max){

或者为自定义固定数组// var b = ['0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'];

var b = [];

if(typeof(n)==='number'){

for (var i = n ; i > 0; i--) {

// var nub = Math.floor(Math.random()*b.length-1)

var nub = Math.floor(Math.random()*(max-min))+min;

if(b.indexOf(nub)!==-1){

i++

}else{b.push(nub)}

}

return b

}

}

var number = fn(3,2,32)

console.log(number)