undefined is not an object (evaluating 'e.helps.filter') 确认是数组 测试打印数组.filter 也提示undefined is not a function
at Array.filter (<anonymous>)
undefined is not an object (evaluating 'e.helps.filter') 确认是数组 测试打印数组.filter 也提示undefined is not a function
at Array.filter (<anonymous>)