JS生成不重复的随机数组的简单实例

//获取数组中的随机数//HF.Math.RandomNumbers是前缀，可以自己定义，主要看逻辑代码HF.Math.RandomNumbers = function (startNum, endNum, count, repeat) {  var ret = [];  if (repeat) {    for (var i = 0; i < count; i++) {      ret[i] = HF.Math.Random(startNum, endNum);    }    return ret;  }  var tmp = [];  var i = 0;  for (var s = startNum; s <= endNum; s++) {    tmp[i++] = s;  }  var l = tmp.length;  for (i = 0; i < count; i++) {    ret[i] = HF.Array.Remove(tmp, HF.Math.Random(0, --l));  }  return ret;}