javascript - 关于Highcharts导出功能模块的问题?-PHP中文网问答

我引入exporting.js后，页面一直出错说“lang”没有找到，我是讲Highcharts中文网的例子完全复制过来的，实在不知道哪里出错了。
Highcharts.setOptions({
        lang:{
            contextButtonTitle:"图表导出菜单",
            decimalPoint:".",
            downloadJPEG:"下载JPEG图片",
            downloadPDF:"下载PDF文件",
            downloadPNG:"下载PNG文件",
            downloadSVG:"下载SVG文件",
            drillUpText:"返回 {series.name}",
            loading:"加载中",
            months:["一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月"],
            noData:"没有数据",
            numericSymbols: [ "千" , "兆" , "G" , "T" , "P" , "E"],
            printChart:"打印图表",
            resetZoom:"恢复缩放",
            resetZoomTitle:"恢复图表",
            shortMonths: [ "Jan" , "Feb" , "Mar" , "Apr" , "May" , "Jun" , "Jul" , "Aug" , "Sep" , "Oct" , "Nov" , "Dec"],
            thousandsSep:",",
            weekdays: ["星期一", "星期二", "星期三", "星期三", "星期四", "星期五", "星期六","星期天"]
        }
    });
    $(function () {
        $('#container').highcharts({
            title: {
                text: 'Monthly Average Temperature',
                x: -20 //center
            },
            subtitle: {
                text: 'Source: WorldClimate.com',
                x: -20
            },
            xAxis: {
                categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun','Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
            },
            yAxis: {
                title: {
                    text: 'Temperature (°C)'
                },
                plotLines: [{
                    value: 0,
                    width: 1,
                    color: '#808080'
                }]
            },
            tooltip: {
                valueSuffix: '°C'
            },
            legend: {
                layout: 'vertical',
                align: 'right',
                verticalAlign: 'middle',
                borderWidth: 0
            },
            series: [{
                name: 'Tokyo',
                data: [7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6]
            }, {
                name: 'New York',
                data: [-0.2, 0.8, 5.7, 11.3, 17.0, 22.0, 24.8, 24.1, 20.1, 14.1, 8.6, 2.5]
            }, {
                name: 'Berlin',
                data: [-0.9, 0.6, 3.5, 8.4, 13.5, 17.0, 18.6, 17.9, 14.3, 9.0, 3.9, 1.0]
            }, {
                name: 'London',
                data: [3.9, 4.2, 5.7, 8.5, 11.9, 15.2, 17.0, 16.6, 14.2, 10.3, 6.6, 4.8]
            }]
        });
    });