效果图

源代码
<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>ECharts</title>
    <!-- 引入 echarts.js -->
    <script src="js/echarts.min.js"></script>
  </head>
  <body>
    <!-- 为ECharts准备一个具备大小(宽高)的Dom -->
    <div id="main" style="width: 600px;height:400px;"></div>
    <script type="text/javascript">
      // 基于准备好的dom,初始化echarts实例
      var myChart = echarts.init(document.getElementById('main'));
      var option;
      option = {
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            crossStyle: {
              color: '#999'
            }
          }
        },
        toolbox: {
          feature: {
            dataView: {
              show: true,
              readOnly: false
            },
            magicType: {
              show: true,
              type: ['line', 'bar']
            },
            restore: {
              show: true
            },
            saveAsImage: {
              show: true
            }
          }
        },
        legend: {
          data: ['蒸发量', '降水量', '平均温度']
        },
        xAxis: [{
          type: 'category',
          data: ['1月', '2月', '3月', '4月', '5月', '6月', '7月', '8月', '9月', '10月', '11月', '12月'],
          axisPointer: {
            type: 'shadow'
          }
        }],
        yAxis: [{
            type: 'value',
            name: '水量',
            min: 0,
            max: 250,
            interval: 50,
            axisLabel: {
              formatter: '{value} ml'
            }
          },
          {
            type: 'value',
            name: '温度',
            min: 0,
            max: 25,
            interval: 5,
            axisLabel: {
              formatter: '{value} °C'
            }
          }
        ],
        series: [{
            name: '蒸发量',
            type: 'bar',
            data: [2.0, 4.9, 7.0, 23.2, 25.6, 76.7, 135.6, 162.2, 32.6, 20.0, 6.4, 3.3]
          },
          {
            name: '降水量',
            type: 'bar',
            data: [2.6, 5.9, 9.0, 26.4, 28.7, 70.7, 175.6, 182.2, 48.7, 18.8, 6.0, 2.3]
          },
          {
            name: '平均温度',
            type: 'line',
            yAxisIndex: 1,
            data: [2.0, 2.2, 3.3, 4.5, 6.3, 10.2, 20.3, 23.4, 23.0, 16.5, 12.0, 6.2]
          }
        ]
      };
      myChart.setOption(option);
    </script>
  </body>
</html>