     stack: 'two',
                        itemStyle: itemStyle,
                        data: data3
                    }, {
                        name: 'bar4',
                        type: 'bar',
                        stack: 'two',
                        itemStyle: itemStyle,
                        data: data4
                    }]
                });
                console.profileEnd('setOption');
            })

        </script>
    </body>
</html>