//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; }