vue3 ts编写echart是tooltip无法展示的解决_vue.js_

tooltip: {         show: true,         trigger: 'axis',         axisPointer: {           // 坐标轴指示器，坐标轴触发有效           type: 'line', // 默认为直线，可选为：'line' | 'shadow'           lineStyle: {             color: '#57617B'           }         },         formatter:           '{b}
{a0}: {c0}%
{a1}: {c1}%
{a2}: {c2}%',         backgroundColor: 'rgba(0,0,0,0.7)', // 背景         padding: [8, 10], // 内边距         extraCssText: 'box-shadow: 0 0 3px rgba(255, 255, 255, 0.4);' // 添加阴影       },

myEhart.value = markRaw(echarts.init(cyEchartRef.value))       myEhart.value.setOption(echartOption)       // myEhart.off('click')       myEhart.value.on('click', function(params) {         fetchDataFun(params.value)         getLight(params.value)       })

change: { date: { date_x: ["2020-11-12"], date_y: [10], date_describe: [5] } } 

drawPass(){ // 基于准备好的dom，初始化echarts实例 let ref = this.$refs.pass let discrible = this.pwd_data_describe if (ref && ref !== undefined) { let myChart = this.$echarts.init(ref) // 绘制图表 myChart.setOption({ tooltip: { show: true, formatter: function (param) { console.log(param) return param.name + '
' + param.value + '
描述：距上一次修改天数为 ' + discrible[param.seriesIndex] } }, xAxis: { type: 'category', data: this.pwd_data_x, }, yAxis: { type: 'value' }, series: [{ data: this.pwd_data_y, type: 'line', symbol: 'triangle', symbolSize: 20, lineStyle: { color: '#cc302e', width: 4, type: 'dashed' }, itemStyle: { borderWidth: 3, borderColor: '#ff6f6c', color: '#ff9392' } }] }) } },