``` //数组移除指定对象或下标i Array.prototype.remove = function (obj) { for (var i = 0; i < this.length; i++) { var temp = this[i]; if (!isNaN(obj)) { temp = i; } if (temp == obj) { for (var j = i; j < this.length; j++) { this[j] = this[j + 1]; } this.length = this.length - 1; } } } ```