ECharts Tip added custom character

The final results are as follows

. 1 Option = {
 2      title: {
 . 3          text: 'contribution ranking' ,
 . 4          left: 'Center' , // center the title
 . 5      },
 . 6      DataSet: {
 . 7          Source: [
 . 8              [ 'AMOUNT', 'Product' ],
 . 9              [58212, 'a squadron' ],
 10              [78254, "the second squadron ' ],
 11              [41032,' three squadron ' ],
 12              [12755," four squadron' ],
 13              [20145, "five squadron ' ],
 14              [79146 'Six squadron ' ],
15              [91852, "seven squadron ' ],
 16              [101,852,' eight squadron ' ],
 17              [20112," nine squadron' ]
 18 is          ]
 . 19      },
 20 is      ToolTip: {
 21 is          
22 is          Formatter: function (the params) {
 23 is              return the params .value [1] + ':' + params.value [0] + ' article' ; // array of value pairs taken display
 24              },
 25      },
 26 is      Grid: {containLabel: to true },
 27      XAXIS: {name: 'number' },
 28      YAXIS: {
 29         name: 'squadron name' ,
 30          type: 'category' ,
 31 is          AxisLabel: {
 32              interval The: 0 ,
 33 is              Rotate: 30 // Name Y-axis rotated 30 degrees
 34 is          },
 35  
36      },
 37 [  
38 is      Series: [
 39          {
 40              type: 'bar' ,
 41 is              encode: {
 42 is                  X: 'AMOUNT' ,
 43 is                  Y: 'Product'
 44 is              },
 45              ItemStyle: {// color gradient
 46                 color: new echarts.graphic.LinearGradient(
47                     0, 0, 1, 0,
48                     [
49                         {offset: 0, color: '#83bff6'},
50                         {offset: 0.5, color: '#188df0'},
51                         {offset: 1, color: '#188df0'}
52                     ]
53                 )
54             },
55             label: {
56                 normal: {
57                     position: 'right',
58                     show: true
59                 }
60             },
61         }
62     ]
63 };

Please copy the code above to see the effects https://www.echartsjs.com/examples/zh/editor.html?c=dataset-encode0&theme=light run