摘要：
1 <template> 2 <view class="content"> 3 <canvas id="myCanvas" style="margin: 100rpx auto;width: 300px;height: 300px;" canvas-id="myCanvas"></canvas> 4 阅读全文
摘要：
1 touchmove: function(e) { 2 if (this.complete || this.disabled) { 3 return; 4 } 5 // ctx.globalCompositeOperation = 'destination-out'; 6 ctx.moveTo(t 阅读全文