解决：

//图例动态置灰
    option.legend.selected = (data || []).reduce((prev, cent) => {
        const {name, value} = cent;
        return Object.assign({}, prev, {
            [name]: !['未见异常数量', 'Normal'].includes(name) && !!value,
        });
    }, {});

页面：（日志异常检测）