feat:默认lineCap

src/services/defaults.ts

@@ -331,6 +331,7 @@ export const shapes = [
           height: 50,
           borderRadius: 0.1,
           name: 'rectangle',
+          lineCap:"butt"
         },
       },
       {
@@ -341,6 +342,7 @@ export const shapes = [
           width: 100,
           height: 100,
           name: 'circle',
+          lineCap:"butt"
         },
       },
       {