小编use*_*138的帖子

我试图在线图中使用工具提示,但我不明白为什么工具提示值不会到来.我想要在渲染线图时,在特定数字中添加圆形符号"o".i意味着添加一些圆形符号.请在下面找到我的脚本

    <script>
        function ShowLineChart() {

            var data = [
        { date: "1-jan-12", close: 5 },
        { date: "1-Feb-12", close: 100 },
        { date: "1-mar-12", close: 150 },
        { date: "1-apr-12", close: 90 },
        { date: "1-May-12", close:34 },
        { date: "1-jun-12", close: 67 },
        { date: "1-jul-12", close:67 },
        { date: "1-Aug-12", close: 79 }
    ];
            var margin = { top: 20, right: 20, bottom: 30, left: 50 },
    width = 460 - margin.left - margin.right,
    height = 200 - …