highcharts 页面导出旋钮汉化

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在使用highcharts作为web图表的显示插件时，因为highcharts是老外开发的，所以按钮内容当然也是英文了。
不过，highcharts 的api也为我们汉化提供了汉化的属性设置，

highcharts lang属性就是设置这些按钮汉化的地方

lang: {
decimalPoint: "."
downloadJPEG: "Download JPEG image"
downloadPDF: "Download PDF document"
downloadPNG: "Download PNG image"
downloadSVG: "Download SVG vector image"
exportButtonTitle: "Export to raster or vector image"
loading: Loading...
months: ['January' 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
numericSymbols: ['k', 'M', 'G', 'T', 'P', 'E']
printButtonTitle: "Print the chart"
resetZoom: Reset zoom
resetZoomTitle: Reset zoom level 1:1
shortMonths: ['Jan' 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
thousandsSep: "",
weekdays: ['Sunday' 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday']
}

其中这些属性对应的 内容可以改为汉语就行了 ，不用去再改源码了。

downloadJPEG: "下载JPEG 图片"
downloadPDF: "下载PDF文档"
downloadPNG: "下载PNG 图片"
downloadSVG: "下载SVG 矢量图"
exportButtonTitle: "导出图片"


示例代码：

$(function () {
    var chart = new Highcharts.Chart({
        chart: {
            renderTo: 'container'
        },
       lang｛
                  downloadJPEG: "下载JPEG 图片"
                  downloadPDF: "下载PDF文档"
                 downloadPNG: "下载PNG 图片"
                 downloadSVG: "下载SVG 矢量图"
                 exportButtonTitle: "导出图片"
      ｝，
        xAxis: {
            categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
        },
        subtitle: {
            text: 'The subtitle',
            style: {
                color: '#FF00FF',
                fontWeight: 'bold'
            }
        },
        series: [{
            data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]        
        }]
    });
});

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