var window_width=1024;

var window_height=768;

var radius=8;

window.onload=function(){

var canvas=document.getElementById("canvas");

var context=canvas.getContext("2d");

//方便屏幕大小和自適應(yīng)

canvas.width=window_width;

canvas.height=window_height;

render(context);

}

function render(cxt){

//繪制畫(huà)布

//繪制時(shí)鐘

//存放倒計(jì)時(shí)的數(shù)字

var hours=12;

var minutes=34;

var seconnds=56;

//繪制1個(gè)數(shù)字的所有信息 開(kāi)始繪制的位置（x,y），要繪制的數(shù)字，(兩位數(shù)字)，繪圖環(huán)境

renderDigit(50,50,parseInt(hours/10),cxt);

}

function renderDigit(x,y,num,cxt){

cxt.fillStyle="rgb(0,102,153)";

for(var i=0; i<digit[num].length; i++){

for(j=0; j<digit[num][i].length; j++){

if(digit[num][i][j]==1){

//繪制小球

cxt.beginPath();

cxt.arc(x+j*2*(radius+1)+(radius+1),y+i*2*(radius+1)+(radius+1),radius,0,2*Math.PI);

cxt.closePath();

cxt.fill();

}

}

}

}