签名优化

src/components/miliu-autograph/miliu-autograph.vue

@@ -70,7 +70,6 @@ const touchstart = (e) => {
   let startPoint = { X: startX, Y: startY }
   points.push(startPoint)
   canvaCtx.beginPath()
-  hasDrawn.value = true // 标记已签名
 }
 // 触摸移动
 const touchmove = (e) => {
@@ -80,6 +79,7 @@ const touchmove = (e) => {
   points.push(movePoint)
   if (points.length >= 2) {
     draw()
+		hasDrawn.value = true // 标记已签名
   }
 }
 // 绘制