XML/HTML Code复制内容到剪贴板
<html>
<canvas id="a_canvas" width="1000" height="700"></canvas>
<script>
(function (){
window.addEventListener("load", function(){
var data = [1000,1300,2000,3000,2000,2000,1000,1500,2000,5000,1000,1000];
var xinforma = [‘1月’,’2月’,’3月’,’4月’,’5月’,’6月’,’7月’,’8月’,’9月’,’10月’,’11月’,’12月’];
// 获取上下文
var a_canvas = document.getElementById(‘a_canvas’);
var context = a_canvas.getContext("2d");
// 绘制背景
var gradient = context.createLinearGradient(0,0,0,300);
// gradient.addColorStop(0,"#e0e0e0");
//gradient.addColorStop(1,"#ffffff");
context.fillStyle = gradient;
context.fillRect(0,0,a_canvas.width,a_canvas.height);
var realheight = a_canvas.height-15;
var realwidth = a_canvas.width-40;
// 描绘边框
var grid_cols = data.length + 1;
var grid_rows = 4;
