Question

我试图在我的网站中使用Chart.js，但是该图表不会出现，并且chrome控制台中没有错误代码。我正在使用Chart.js v2.7.2。

我尝试了任何解决方案，但没有帮助，我还从chart.js文档中复制了代码。怎么了？

var ctx = document.getElementById("myChart").getContext('2d');
var myChart = new Chart(ctx, {
    type: 'bar',
    data: {
        labels: ["Red", "Blue"],
        datasets: [{
            label: '# of Votes',
            data: [12, 19],
            backgroundColor: [
                'rgba(255, 99, 132, 0.2)',
                'rgba(54, 162, 235, 0.2)'
            ],
            borderColor: [
                'rgba(255,99,132,1)',
                'rgba(54, 162, 235, 1)'
            ],
            borderWidth: 1
        }]
    },
    options: {
        scales: {
            yAxes: [{
                ticks: {
                    beginAtZero:true
                }
            }]
        }
    }
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.2/Chart.js"></script>
<canvas id="myChart" width="400" height="400"></canvas>

Answer 1

尝试一下：

<html>
<head>
<script type="text/javascript">
window.onload = function () {

var chart = new CanvasJS.Chart("chartContainer", {
    theme: "light1", // "light2", "dark1", "dark2"
    animationEnabled: false, // change to true      
    title:{
        text: "Basic Column Chart"
    },
    data: [
    {
        // Change type to "bar", "area", "spline", "pie",etc.
        type: "column",
        dataPoints: [
            { label: "apple",  y: 10  },
            { label: "orange", y: 15  },
            { label: "banana", y: 25  },
            { label: "mango",  y: 30  },
            { label: "grape",  y: 28  }
        ]
    }
    ]
});
chart.render();

}
</script>
</head>
<body>
<div id="chartContainer" style="height: 370px; width: 100%;"></div>
<script src="https://canvasjs.com/assets/script/canvasjs.min.js"> </script>
</body>
</html>

图表未出现

1 个答案: