小编Joh*_*ier的帖子

我正在使用Chart.js,一切正常,但我想用渐变替换当前的颜色背景(fillColor:"rgba(250,174,50,0.5)").我有替换渐变的解决方案,但对我来说,用我糟糕的JS知识来实现​​这个太难了.对于懂JS的人来说,我觉得很容易.

所以我的Chart.js代码:

        <script>

        var data = {
            labels : ["02:00","04:00","06:00","08:00","10:00","12:00","14:00","16:00","18:00","20:00","22:00","00:00"],
            datasets: [
                {
                    fillColor : "rgba(250,174,50,0.5)",
                    strokeColor : "#ff6c23",
                    pointColor : "#fff",
                    pointStrokeColor : "#ff6c23",
                    pointHighlightFill: "#fff",
                    pointHighlightStroke: "#ff6c23",
                    data : [25.0,32.4,22.2,39.4,34.2,22.0,23.2,24.1,20.0,18.4,19.1,17.4]
                }
            ]
        };

        var options = {
            responsive: true,
            datasetStrokeWidth : 3,
            pointDotStrokeWidth : 4,
            tooltipFillColor: "rgba(0,0,0,0.8)",
            tooltipFontStyle: "bold",
            tooltipTemplate: "<%if (label){%><%=label + ' hod' %>: <%}%><%= value + '°C' %>",
            scaleLabel : "<%= Number(value).toFixed(0).replace('.', ',') + '°C'%>"
        };

        var ctx = document.getElementById("temp-chart").getContext("2d");
        var myLineChart = new Chart(ctx).Line(data, …