grid的left和right的值为0的时候，坐标轴坐标被遮挡，echarts candlestick配置项内容和展示

当设置grid的left和right的值为0的时候，x轴的第一个坐标和最后一个坐标被局部遮挡，如何设置x轴的第一个坐标点的对齐方式为左对齐，最后一个左边的对齐方式为右对齐避免坐标被遮挡；或者其他的方案

      var upColor = '#ec0000';
var upBorderColor = '#8A0000';
var downColor = '#00da3c';
var downBorderColor = '#008F28';


// 数据意义：开盘(open)，收盘(close)，最低(lowest)，最高(highest)
var data0 = splitData([
    ['2013/1/24', 2320.26, 2320.26, 2287.3, 2362.94],
    ['2013/1/25', 2300, 2291.3, 2288.26, 2308.38],
    ['2013/1/28', 2295.35, 2346.5, 2295.35, 2346.92],
    ['2013/1/29', 2347.22, 2358.98, 2337.35, 2363.8],
    ['2013/1/30', 2360.75, 2382.48, 2347.89, 2383.76],
    ['2013/1/31', 2383.43, 2385.42, 2371.23, 2391.82],
    ['2013/2/1', 2377.41, 2419.02, 2369.57, 2421.15],
    ['2013/2/4', 2425.92, 2428.15, 2417.58, 2440.38],
    ['2013/2/5', 2411, 2433.13, 2403.3, 2437.42],
    ['2013/2/6', 2432.68, 2434.48, 2427.7, 2441.73],
    ['2013/2/7', 2430.69, 2418.53, 2394.22, 2433.89],
    ['2013/2/8', 2416.62, 2432.4, 2414.4, 2443.03],
    ['2013/2/18', 2441.91, 2421.56, 2415.43, 2444.8],
    ['2013/2/19', 2420.26, 2382.91, 2373.53, 2427.07],
    ['2013/2/20', 2383.49, 2397.18, 2370.61, 2397.94],
    ['2013/2/21', 2378.82, 2325.95, 2309.17, 2378.82],
    ['2013/2/22', 2322.94, 2314.16, 2308.76, 2330.88]
]);


function splitData(rawData) {
    var categoryData = [];
    var values = []
    for (var i = 0; i < rawData.length; i++) {
        categoryData.push(rawData[i].splice(0, 1)[0]);
        values.push(rawData[i])
    }
    return {
        categoryData: categoryData,
        values: values
    };
}

function calculateMA(dayCount) {
    var result = [];
    for (var i = 0, len = data0.values.length; i < len; i++) {
        if (i < dayCount) {
            result.push('-');
            continue;
        }
        var sum = 0;
        for (var j = 0; j < dayCount; j++) {
            sum += data0.values[i - j][1];
        }
        result.push(sum / dayCount);
    }
    return result;
}



option = {
    title: {
        text: '上证指数',
        left: 0
    },
    tooltip: {
        trigger: 'axis',
        axisPointer: {
            type: 'cross'
        }
    },
    legend: {
        data: ['日K', 'MA5', 'MA10', 'MA20', 'MA30']
    },
    grid: {
        left: '0%',
        right: '0%',
        bottom: '15%',
        containLabel: true,
    },
    xAxis: {
        type: 'category',
         boundaryGap: [135, 135],
        data: data0.categoryData,
        scale: true,
        boundaryGap: false,
        axisLine: {
            onZero: false
        },
        splitLine: {
            show: false
        },
        splitNumber: 20,
        min: 'dataMin',
        max: 'dataMax'
    },
    yAxis: {
        scale: true,
        
        splitArea: {
            show: true
        },
        axisLabel: {
            inside: true,
            align: 'center',

        },
    },
    dataZoom: [{
            type: 'inside',
            start: 50,
            end: 100
        },
        {
            show: true,
            type: 'slider',
            y: '90%',
            start: 50,
            end: 100
        }
    ],
    series: [{
            name: '日K',
            type: 'candlestick',
            data: data0.values,
            itemStyle: {
                normal: {
                    color: upColor,
                    color0: downColor,
                    borderColor: upBorderColor,
                    borderColor0: downBorderColor
                }
            },

        },
        {
            name: 'MA5',
            type: 'line',
            data: calculateMA(5),
            smooth: true,
            lineStyle: {
                normal: {
                    opacity: 0.5
                }
            }
        },
        {
            name: 'MA10',
            type: 'line',
            data: calculateMA(10),
            smooth: true,
            lineStyle: {
                normal: {
                    opacity: 0.5
                }
            }
        },
        {
            name: 'MA20',
            type: 'line',
            data: calculateMA(20),
            smooth: true,
            lineStyle: {
                normal: {
                    opacity: 0.5
                }
            }
        },
        {
            name: 'MA30',
            type: 'line',
            data: calculateMA(30),
            smooth: true,
            lineStyle: {
                normal: {
                    opacity: 0.5
                }
            }
        },

    ]
};