小编Pra*_*ngh的帖子

是html,css和javascript的新手.目前正在使用javascript创建饼图.我的疑问是如何在函数中包含css悬停函数.任何人都帮我把css悬停在这里包含的javascript函数中.提前致谢

<script type="text/javascript">
    function PieChart(id, o) {
        this.includeLabels = true;
        if (o.includeLabels == undefined) {
            this.includeLabels = false;
        }
        else {
            this.includeLabels = o.includeLabels;
        }
        this.data = o.data ? o.data : [30, 70, 45, 65, 20, 130]; 
        this.labels = o.labels ? o.labels : ["First", "Second", "Third", "Fourth", "Fifth", "Sixth"];
        this.colors = o.colors ? o.colors : [
                ["#bbddb3", "#1d8e04"], // green
                ["#e2f5b4", "#9edd08"], // yellow green
                ["#fdfbb4", "#faf406"], // yellow
                ["#fbd4b7", "#f2700f"], // orange
                ["#f8bdb4", "#ea2507"], // red
                ["#e2bcbd", "#9e2126"]  // …

我想在附近放置两个画布.但不幸的是,当我包含两个画布时,它会自动在两个画布之间产生一个空格.如何删除该空白空间或如何连接这两个画布.这是我的小提琴小提琴

这是我的代码:

<canvas id="button" width="30" height="30" style="border:1px solid #d3d3d3;background-color:green;"></canvas> 
<canvas id="button" width="30" height="30" style="border:1px solid #d3d3d3;background-color:green;"></canvas> 
?

这是脚本:

window.onload=function()
{
var canvas = document.getElementById("button");
var ctx = canvas.getContext('2d');
}?