echartsjs折线图（动态）

 var data_in = [
           10,10,21,21,12,12,11,11,52,45,87,98,15,56,15,10,
           10,10,21,21,12,12,11,11,52,45,87,98,15,56,15,10,
           10,10,21,21,12,12,11,11,52,45,87,98,15,56,15,10,
           10,10,21,21,12,12,11,11,52,45,87,98,15,56,15,10,
           10,10,21,21,12,12,11,11,52,45,87,98,15,56,15,10,
           10,10,21,21,12,12,11,11,52,45,87,98,15,56,15,10,
           10,10,21,21,12,12,11,11,52,45,87,98,15,56,15,10,10,10,21,21,12,12,11,11,52,45,87,98,15,56,15,10,
           10,10,21,21,12,12,11,11,52,45,87,98,15,56,15,10,
           10,10,21,21,12,12,11,11,52,45,87,98,15,56,15,10,
           10,10,21,21,12,12,11,11,52,45,87,98,15,56,15,10,
           10,10,21,21,12,12,11,11,52,45,87,98,15,56,15,10,
        ];
            var oneDay = 24 * 3600 *1000;
            var fiveMinutes = 300 * 1000;
            var timestr = '2016/2/18 00:00:00';
            var startTime = +new Date(timestr)-fiveMinutes;
 
        //把new Date出来的时间格式转换为data123中的日期格式
        function riqigeshi(now){
    
    
            return now.toLocaleDateString() + ' ' + now.getHours() + now.toLocaleTimeString().substr(-6,6)
        }
 
        //用来返回data123一样的数据格式
        function chartData(i,data,now) {
    
    
            return {
    
    
                value: [
                    riqigeshi(now),
                    data[i]/1024,
                ]
            }
        }
 
        //把原数据改成data123一样的格式
        function changeData(datain) {
    
    
            var liuru = [];
            for (var i = 0; i < 289; i++) {
    
    
                startTime = new Date(+startTime + fiveMinutes);
                liuru.push(chartData(i,datain,startTime));
            }
            return liuru;
        }
        var liuru = changeData(data_in);
        console.log(liuru)
        // var chart = echarts.init(document.getElementById("chart"));
        option = {
    
    
            grid:{
    
    
                x:'3.6%',
                y:'5%',
                x2:'2.4%',
                y2:'12%',
            },
            xAxis:{
    
    
                type:'time',
                splitNumber:24
            },
            yAxis:{
    
    
                type:'value',
                axisLabel:{
    
    
                    formatter:'{value} G'       //给Y轴上的刻度加上单位
                },
            },
            series:{
    
    
                name: '流入',
                type: 'line',
                showSymbol: false,
                symbolSize:12,
                data: liuru,
                 lineStyle: {
    
    
                    normal: {
    
    
        				color:"rgb(55, 200, 143)",
                        shadowColor: 'rgba(55, 200, 143, .4)',
                        shadowBlur: 8,
                        shadowOffsetY: 10,
                        shadowOffsetX: 0,
                    },
                },
                areaStyle: {
    
    
        		normal: {
    
    
                        color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
    
    
                            offset: 0,
                            color: 'rgba(55, 200, 143, .4)'
                        }, {
    
    
                            offset: 1,
                            color: 'rgba(55, 200, 143, .1)'
                        }]),
                    }
            	}
            }
        };
 
        function refresh() {
    
    
            // liuru先shift(),再push()
            var liuruShift = liuru.shift();
            var liuruShiftVal = liuruShift.value[1];
            var newlrtime = riqigeshi(new Date(+new Date(liuruShift.value[0])+oneDay+fiveMinutes));
            liuru.push({
    
    value:[newlrtime,liuruShiftVal]});
            myChart.setOption({
    
    
                series:{
    
    
                    data:liuru,
                }
            });
        }
 
        // setInterval(function () {
    
    
        //     refresh();
        // },1000);```