设置了Y轴的min值或scale之后，图表显示不正确echarts 柱状配置项内容和展示

同样的代码，我在本地的网页，柱形图的起点就在X轴的下面？？但是在官方用例上编辑，就没有问题

      option = {
title: {
            text:'Y轴设置scale之后柱形图的起点在X轴下面',
            // subtext: 'From ExcelHome',
            x:'center',
            textStyle:{
              color:'#3f5f82',
              // fontStyle:'oblique',
              fontWeight:'bold',
          　　fontSize:24,
              left:'center',
              // align:'center'
            },
          },
          color: ['#27BAE5','#67C23A','#e9cb73'],
          tooltip: {
              trigger: 'axis',
              // formatter: '{b0}<br />{a0}: {c0}<br />{a1}: {c1}<br />{a2}: {c2}%',
              axisPointer: 
              {
                type: 'cross'
              }
          },
          toolbox: {
            top:25,
              show : true,
              itemGap: 3,
              right:20,
              feature : {
                  dataView : {show: true, readOnly: false},
                  magicType : {show: true, type: ['line']},
                  restore : {show: true},
                  saveAsImage : {show: true}
              }
          },
          legend: {
              data:['当期值','同期值','同比增减'],
              left:'center',
              top:30
          },
          grid: {
              left:'40',   
              right: '55',
              top:'80',
              bottom:'30'
          },
          xAxis: [
              {   
                  type: 'category',
                  data: ["59","66","70","55"],
                  // axisPointer: {
                  //     type: 'shadow'
                  // },
                  // axisLabel: {
                  //   rotate: 50, 
                  //   interval: 0,
                  //   fontSize:9
                  // }
              }
          ],
          yAxis : [
              {
                name:"leftY",
                type : 'value',
                scale:true,
                // power:1,
                // precision:1,
                // max:100,
                // min:20,
              },
              {
                name:"leftY",
                type : 'value',
                // scale:true,
                // axisLabel: {
                //   formatter: '{value} %'
                // },
                splitLine: {
                  show: false
                }
              }
          ],
          series: [
              {
                  name:'当期值',
                  
                  type:'bar',
                  smooth: true,                 
                  data:["59","66","70","55"],  
                  markPoint : {
                    z:3,
                    zlevel:3,
                    data : [
                        {type : 'max', name: '最大值'},
                        {type : 'min', name: '最小值'}
                    ],
                    itemStyle:{  
                        normal:{
                          label:{  
                            show: true,  
                            formatter: function (param) {
                              var num=param.value;
                              num = Math.round(num*10000)/10000
                              var source = String(num).split(".");
                              source[0] = source[0].replace(new RegExp('(\\d)(?=(\\d{3})+$)','ig'),"$1,");
                              return source.join(".");
                            }    
                          }  
                        }                       
                      },
                  },              
              },
              {
                  name:'同期值',
                  type:'bar',
                  smooth: true,                 
                  data:["59","66","70","55"],  
                  barGap:'5%',   
                  markPoint : {
                    data : [
                        {type : 'max', name: '最大值'},
                        {type : 'min', name: '最小值'}
                    ],
                    itemStyle:{  
                        normal:{
                          label:{  
                            show: true,  
                            formatter: function (param) {
                              var num=param.value;
                              num = Math.round(num*10000)/10000
                              var source = String(num).split(".");
                              source[0] = source[0].replace(new RegExp('(\\d)(?=(\\d{3})+$)','ig'),"$1,");
                              return source.join(".");
                            }    
                          }  
                        }                       
                      },
                  },             
              },
              {
                  name:'同比增减',
                  type:'line',
                  smooth: true,
                  yAxisIndex: 1,                 
                  data:["-0.03","0.5","0.32","-0.5"],  
                  markPoint : {
                    data : [
                        {type : 'max', name: '最大值'},
                        {type : 'min', name: '最小值'}
                    ],
                    itemStyle:{  
                        normal:{
                          label:{  
                            show: true,  
                            formatter: function (param) {
                              var num=param.value;
                              num = Math.round(num*10000)/10000
                              var source = String(num).split(".");
                              source[0] = source[0].replace(new RegExp('(\\d)(?=(\\d{3})+$)','ig'),"$1,");
                              return source.join(".");
                            }    
                          }  
                        }                       
                      },
                  },              
              }
            ]
};