学习了
对于一个文科生,数学还挂过科的人,尼玛这种数学计算真心不会啊,那么复杂的东西表示不会了,不过我把那个最早的代码call下来改成了一个电子时钟的显示大概就是这个样子吧。
代码只做了几行修改,纯属娱乐吧
var WINDOW_WIDTH = 1024; var WINDOW_HEIGHT = 768; var RADIUS = 8; var MARGIN_TOP = 60; var MARGIN_LEFT = 30; var canvas = document.getElementById('canvas'); var context = canvas.getContext("2d"); var colors = ['#FF83FA','#EEEE00','#f58220','#7bbfea','#fcf16e','#6f60aa','#bed742','#d71345','#006c54','#afdfe4','#ef5b9c','#d93a49','#76becc','#cbc547','#426ab3','#11264f','#563624','#f15a22','#deab8a','#401c44'] window.onload = function(){ canvas.width = WINDOW_WIDTH; canvas.height = WINDOW_HEIGHT; render(context); setInterval(function(){ context.clearRect(0, 0, canvas.width, canvas.height); render(context); },1000); } function render( cxt ){ var date = new Date(); var hours = date.getHours(); var minutes = date.getMinutes(); var seconds = date.getSeconds(); if( hours<10 ) hours = "0"+hours; if( minutes<10 ) minutes = "0"+minutes; if( seconds<10 ) seconds = "0"+seconds; renderDigit( MARGIN_LEFT , MARGIN_TOP , parseInt(hours/10) , cxt ) renderDigit( MARGIN_LEFT + 15*(RADIUS+1) , MARGIN_TOP , parseInt(hours%10) , cxt ) renderDigit( MARGIN_LEFT + 30*(RADIUS + 1) , MARGIN_TOP , 10 , cxt ) renderDigit( MARGIN_LEFT + 39*(RADIUS+1) , MARGIN_TOP , parseInt(minutes/10) , cxt); renderDigit( MARGIN_LEFT + 54*(RADIUS+1) , MARGIN_TOP , parseInt(minutes%10) , cxt); renderDigit( MARGIN_LEFT + 69*(RADIUS+1) , MARGIN_TOP , 10 , cxt); renderDigit( MARGIN_LEFT + 78*(RADIUS+1) , MARGIN_TOP , parseInt(seconds/10) , cxt); renderDigit( MARGIN_LEFT + 93*(RADIUS+1) , MARGIN_TOP , parseInt(seconds%10) , cxt); } function renderDigit( x , y , num , cxt ){ for( var i = 0 ; i < digit[num].length ; i ++ ) for(var j = 0 ; j < digit[num][i].length ; j ++ ) if( digit[num][i][j] == 1 ){ var TheColor = colors[Math.floor(Math.random()*colors.length)]; cxt.fillStyle = TheColor; 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() } }