diff --git a/src/components/ruler.vue b/src/components/ruler.vue
index d68b628..28b16dd 100644
--- a/src/components/ruler.vue
+++ b/src/components/ruler.vue
@@ -131,8 +131,12 @@ const dots = ref([
   //   y: 200,
   // }
 ])
-const setDot = (dot) => {
-  dots.value = dot
+const setDot = (dot, bol) => {
+  if (bol) {
+    dots.value = []
+  } else {
+    dots.value = [...dots.value, ...dot]
+  }
 }
 const lineStyle = ref(null)
 
diff --git a/src/views/index.vue b/src/views/index.vue
index a9a9340..519f2d0 100644
--- a/src/views/index.vue
+++ b/src/views/index.vue
@@ -790,6 +790,7 @@ const ad = () => {
 
 const StartWorkBtn = () => {
   StartWork()
+  rulerRef.value.setDot([], true)
 }
 const StopWorkBtn = () => {
   StopWork()