option: {
          grid: {
            x: '1%', y: '15%', width: '98%', height: '75%'
          },
          xAxis: {
            type: 'category',
            data: [1, 2, 3, 4, 5, 6, 7]
          },
          yAxis: {
            type: 'value',
            "show" : false,
            "axisLine": {       //y轴
              "show": false
            },
            "axisTick": {       //y轴刻度线
              "show": false
            },
            "splitLine": {     //网格线
              "show": false
            }
          },
          series: [{
            data: [820, 932, 901, 934, 1290, 1330, 1320],
            type: 'line',
            lineStyle: {
              normal: {
                color: '#34c3a7',
              }
            },
            itemStyle: {normal:{color:'#29c6c8',lineStyle:{color: '#29c6c8'}}},
            areaStyle: {normal:{color:'#e7f8f5'}},
          }]
        },

折线图图修改option中的grid x和y的值

option = {
    backgroundColor: '#2c343c',

    title: {
        text: 'Customized Pie',
        left: 'center',
        top: 20,
        textStyle: {
            color: '#ccc'
        }
    },

    tooltip : {
        trigger: 'item',
        formatter: "{a} <br/>{b} : {c} ({d}%)"
    },
    visualMap: {
        show: false,
        min: 80,
        max: 600,
        inRange: {
            colorLightness: [0, 1]
        }
    },
    series : [
        {
            name:'访问来源',
            type:'pie',
            radius : '55%',
            center: ['50%', '50%'],
            data:[
                {value:335, name:'直接访问'},
                {value:310, name:'邮件营销'},
                {value:274, name:'联盟广告'},
                {value:235, name:'视频广告'},
                {value:400, name:'搜索引擎'}
            ].sort(function (a, b) { return a.value - b.value; }),
            roseType: 'radius',
            label: {
                normal: {
                    textStyle: {
                        color: 'rgba(255, 255, 255, 0.3)'
                    }
                }
            },
            labelLine: {
                normal: {
                    lineStyle: {
                        color: 'rgba(255, 255, 255, 0.3)'
                    },
                    smooth: 0.2,
                    length: 10,
                    length2: 20
                }
            },
            itemStyle: {
                normal: {
                    color: '#c23531',
                    shadowBlur: 200,
                    shadowColor: 'rgba(0, 0, 0, 0.5)'
                }
            },

            animationType: 'scale',
            animationEasing: 'elasticOut',
            animationDelay: function (idx) {
                return Math.random() * 200;
            }
        }
    ]
};

饼状图修改半径 radius : '55%',修改此数值