echart histogram statistics with title, slide over the effect code of the displayed quantity

import * as echarts from 'echarts';

var chartDom = document.getElementById('main');
var myChart = echarts.init(chartDom);
var option;

option = {
    title: {
                text: '已报名门店行政分布',
                x: 'center'
            },
    tooltip: {
        trigger: 'axis',
        axisPointer: {            // 坐标轴指示器，坐标轴触发有效
            type: 'shadow'        // 默认为直线，可选为：'line' | 'shadow'
        }
    },
            toolbox: {
                show: true,
                feature: {
                    mark: {show: true},
                    saveAsImage: {show: true},
                }
            },
    grid: {
        left: '3%',
        right: '4%',
        bottom: '3%',
        containLabel: true
    },
    xAxis: [
        {
            type: 'category',
            data: ['河北', '天津', '上海', '重庆', '成都', '辽宁', '吉林'],
            axisTick: {
                alignWithLabel: true
            }
        }
    ],
    yAxis: [
        {
            type: 'value'
        }
    ],
    series: [
        {
            name: '已报名',
            type: 'bar',
            barWidth: '20%',
            data: [{
                    value: 100,
                    itemStyle: {
                        color: '#a92320'
                    }
                }, 52, 200, {
                    value: 280,
                    itemStyle: {
                        color: '#a12321'
                    }
                }, 390, {
                    value: 300,
                    itemStyle: {
                        color: '#a94523'
                    }
                }, 220]
        }
    ]
};

option && myChart.setOption(option);