label超出画布怎么解决echarts 饼配置项内容和展示

label标签超出了画布

      option = {
    series: [
		{
			type:'pie',
			name: "",
			center: ['50%', '100%'],
			radius: ['80%', '100%'],
			startAngle: 180,
			data: [
			    {value:600, name:'label超出画布怎么解决1'},
                {value:100, name:'label超出画布怎么解决2'},
                {value:50, name:'label超出画布怎么解决3'},
                {value:50, name:'label超出画布怎么解决4'},
                {value:800, name:''}
			]
		}
	]
};