<!DOCTYPE html><html><head> <meta charset="UTF-8"> <title></title></head><body><canvas id="canvas1" style = "border:1px solid #aaa"></canvas><script> var tangram = [ {p:[{x:0,y:0},{x:800,y:0},{x:400,y:400},color:"#caff67"]}, {p:[{x:0,y:0},{x:400,y:400},{x:0,y:800},color:"#67becf"]}, {p:[{x:800,y:0},{x:800,y:400},{x:600,y:600},color:"#ef3d61"]}, {p:[{x:600,y:200},{x:600,y:600},{x:400,y:400},color:"#f9f51a"]}, {p:[{x:400,y:400},{x:600,y:600},{x:400,y:800},color:"#a594c0"]}, {p:[{x:200,y:600},{x:400,y:800},{x:0,y:800},color:"#fa8ecc"]}, {p:[{x:800,y:400},{x:800,y:800},{x:400,y:800},color:"#f6ca29"]} ]//設(shè)置七塊板 window.onload = function(){ var canvas = document.getElementById("canvas1"); canvas.width = 1024; canvas.height = 1024; var context = canvas.getContext("2d"); for(var i=0;i < tangram.length;i++){ drwa(tangram[i],context); } } function drwa(ps,ctx){ ctx.beginPath(); ctx.moveTo(ps.p[0].x,ps.p[0].y); for(var i = 1; i < ps.p.length;i++){ ctx.lineTo(ps.p[i].x,ps.p[i].y); } ctx.closePath(); ctx.fillStyle = ps.color; ctx.fill(); }//畫圖函數(shù)</script></body></html>
3 回答
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蜂之谷
TA貢獻(xiàn)564條經(jīng)驗(yàn) 獲得超863個(gè)贊
中括號(hào)的位置錯(cuò)了
var?tangram?=?[
{p:[{x:0,y:0},{x:800,y:0},{x:400,y:400}],color:"#caff67"},
{p:[{x:0,y:0},{x:400,y:400},{x:0,y:800}],color:"#67becf"},
{p:[{x:800,y:0},{x:800,y:400},{x:600,y:600}],color:"#ef3d61"},
{p:[{x:600,y:200},{x:600,y:600},{x:400,y:400}],color:"#f9f51a"},
{p:[{x:400,y:400},{x:600,y:600},{x:400,y:800}],color:"#a594c0"},
{p:[{x:200,y:600},{x:400,y:800},{x:0,y:800}],color:"#fa8ecc"},
{p:[{x:800,y:400},{x:800,y:800},{x:400,y:800}],color:"#f6ca29"}
]//設(shè)置七塊板-
游賽騰謝謝，果然是太粗心了
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