<!doctype html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1.0,user-scalable=no,maximum-scale=1.0,minimum-scale=1.0" /><title>無(wú)標(biāo)題文檔</title></head><body>? ?<canvas id="box" width="300" height="300" ></canvas>? ?<script type="text/javascript">? ? ? var boxObj = document.getElementById('box');?var boxTxtObj = boxObj.getContext('2d');?boxObj.fillStyle = '#999999';?boxObj.fillRect(0,0,300,300);?boxTxtObj.fillStyle = '#666666';?boxTxtObj.fillRect(100,100,111,111);? ?</script></body></html>
請(qǐng)問(wèn) 我這段代碼為什么沒(méi)能在畫(huà)布上畫(huà)出來(lái)
不告訴你ID
2016-09-19 15:57:56
