[fix]分享图片拉伸问题

pages/views/user/extension.vue

@@ -104,9 +104,9 @@
 			// 0.76
 				var ctx = uni.createCanvasContext('mycanvas', this)
 				ctx.fillStyle = '#FFFFFF'
-				ctx.fillRect(0, 0, this.windowWidth - 30, 560)
+				ctx.fillRect(0, 0, this.windowWidth - 30, 500)
 				//绘制背景图片
-				ctx.drawImage('/static/images/user/shop.png', 0, 0, this.windowWidth - 30, 560)
+				ctx.drawImage('/static/images/user/shop.png', 0, 0, this.windowWidth - 30, 500)
 				ctx.save()
 				// 绘制圆角二维码
 				// let avatar_width = 60; //头像宽度