无坐标轴echarts 折线配置项内容和展示

      var xData = function() {
    var data = [];
    for (var i = 2010; i < 2101; i++) {
        data.push(i+"");
    }
    return data;
}();
var k3data = [389.8983333,391.6525,393.8533333,396.52,398.6475,400.8341667,404.2391667,406.5533333,408.5216667,411.4391667,413.755,414.927,417.193,419.467,421.75,424.04,426.339,428.646,430.961,433.284,435.615,437.955,440.302,442.657,445.02,447.392,449.771,452.158,454.553,456.956,459.367,461.785,464.211,466.646,469.087,471.537,473.994,476.459,478.932,481.412,483.9,486.395,488.898,491.408,493.926,496.451,498.983,501.523,504.07,506.625,509.186,511.755,514.331,516.914,519.504,522.101,524.705,527.316,529.934,532.559,535.191,537.83,540.475,543.127,545.785,548.451,551.122,553.801,556.485,559.177,561.874,564.578,567.288,570.004,572.727,575.456,578.19,580.931,583.678,586.43,589.189,591.953,594.723,597.499,600.28,603.067,605.859,608.657,611.461,614.269,617.083];
option = {
        tooltip: {
        trigger: 'axis',
        position: function (pt) {
            return [pt[0], '10%'];
        }
    },
    toolbox: {

　　show: true,

　　feature: {

　　　　saveAsImage: {

　　　　show:true,

　　　　excludeComponents :['toolbox'],

　　　　pixelRatio: 2

　　　　}

　　}

},

// grid: { // 控制图的大小，调整下面这些值就可以，
//         x: 340,
//         y: 200},

    xAxis: {
        type: "category",
        max:95,
        boundaryGap: false,
        name:"year",
        data: xData,
        nameLocation:"center",
        nameGap:"20",
        nameTextStyle:{
            fontSize: 28,
        },
        axisTick:{
            show:false,
            inside:true,
            length:10,
        },
        axisLabel:{
            interval:9,
            show:false
        },
         axisLine:{
          symbol:["none","arrow"],
        //   symbolOffset:20,
          symbolSize:[9,15]
        },
    },
    yAxis: {
        type:'value',
        name:'CO2 (parts per million)',
        // name: 'Carbon dioxide concentration (ppm)',
        nameLocation:"center",
        nameGap:45,
        nameTextStyle:{
            fontSize: 28,
        },
        textStyle:{
            color:"red",
        },
        
        axisLine:{
          symbol:["none","arrow"],
          symbolOffset:10,
          symbolSize:[9,15]
        },
        
        axisTick:{
            show:false,
        },
        splitLine:{
          show: false,  
        },
        
        fontStyle:{
            fontSize:50,
        },
        axisLabel:{
            show:false
        }
    },
    series: [{
        data: k3data,
        type: 'line',
        smooth: true,
        symbol: 'none',
                    areaStyle: {
                color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
                    offset: 0,
                    color: 'rgb(255, 158, 68)'
                }, {
                    offset: 1,
                    color: 'rgb(255, 70, 131)'
                }])
            },
    }]
};