st xValue = d => d['确诊人数'];
        //const xValue = d => d['感染率'];
        //const yValue = d => {return Math.log(d['diffuse_smooth'] + 1)};
        //const yValue = d => {return d['diffuse_smooth']};
        //const yValue = d => {return Math.log(d['newinfec']+1)};
        //const rValue = d => {return Math.sqrt(d['确诊人数']) + 6};
        let low_max = 4000; 
        let up_max = 1000;
        let limit_up_max = 3500;
        let xScale, yScale, nyScale;
        let maxX, maxY;
       