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当我尝试运行这个JavaScript它说,那里有一个错误 “INDEX_SIZE_ERR:DOM异常1”HTML5画布错误
的Javascript:
blocksize=50;
ctx=document.getElementById('wizard1').getContext('2d');
ctx.drawImage(document.getElementById('wizard.png'),0,0,105,105,0,0,3/7*blocksize,blocksize);
HTML:
<canvas id='wizard1'></canvas>
<img id='wizard.png' src='wizard.png' />
画布默认为300x150,所以这不是问题 – 2010-07-03 03:51:12