长度
数组有个属性称为长度，正如字面意思，这就是数组的长度。var array = [1 , 2, 3];// 结果: l = 3var l = array.length;{% exercise %}定义变量a为数组的长度{% initial %}var array = [1, 1, 2, 3, 5, 8];var l = array.length;var a ={% solution %}var array = [1, 1, 2, 3, 5, 8];var l = array.length;var a = 6;
Xebcnor
