您如何在Google Visualization Chart API中设置百分比？

var options = {
        title: \'Chart Title\',
        vAxis: {
            minValue: 0,
            maxValue: 100,
            format: \'#\\\'%\\\'\'
        } 
    };

chart.draw(data, {vAxis: {format:\'#%\'} } );

{format:\'#,###%\'}