没有问题啊<canvas id="c1" width="100" height="200"></canvas>
<canvas id="c2" width="100" height="200"></canvas>
<script type="text/javascript">
var canvas1 = document.getElementById("c1");
var context1 = canvas1.getContext('2d');
context1.fillRect(11,11,55,66);
var canvas2 = document.getElementById("c2");
var context2 = canvas2.getContext('2d');
context2.drawImage(canvas1 ,0,0);
</script>
<canvas id="c2" width="100" height="200"></canvas>
<script type="text/javascript">
var canvas1 = document.getElementById("c1");
var context1 = canvas1.getContext('2d');
context1.fillRect(11,11,55,66);
var canvas2 = document.getElementById("c2");
var context2 = canvas2.getContext('2d');
context2.drawImage(canvas1 ,0,0);
</script>
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