【报Bug】uniapp引入echarts

示例代码：

var chartDom = document.getElementById("main");
var myChart = echarts.init(chartDom);
var option;
myChart.showLoading();
var graph = this.options;
myChart.hideLoading();

            option = {  
                title: {  
                    text: '标题',  
                    top: 'bottom',  
                    left: 'right'  
                },  
                tooltip: {},  
                animationDuration: 0,  
                animationEasingUpdate: 'quinticInOut',  
                series: [{  
                    name: '标题',  
                    type: 'graph',  
                    layout: 'force',  
                    force: {  
                        initLayout: "circular",  
                        repulsion: 150,  
                        layoutAnimation: true  
                    },  
                    data: graph.nodes,  
                    links: graph.links,  
                    roam: true,  
                    label: {  
                        position: 'inside',  
                        formatter: '{b}'  
                    },  

                }, ],  

            };  

            myChart.setOption(option);  

            myChart.on('click', function(params) {  
                console.log(params);  
            });

操作步骤：

uniapp ×
vue √

预期结果：

uniapp √

实际结果：

Tell me why?