fix

src/components/Canvas/FlowCanvas/flow-canvas.vue

@@ -146,7 +146,7 @@
 	const { layout } = useLayout()
 	const index = ref(0)
 	async function layoutGraph(direction) {
-		if (props.config.json > 0) return
+		if (props.config.json.length > 0) return
 		if (index.value > 0) return
 		index.value++
 		setTimeout(() => {
@@ -187,10 +187,14 @@
 		stateManager.sendToBack(id)
 	}
 	// 导出流程
+	const getFlowJson = () => {
+		if(!stateManager.isSave.value)return ''
+		return JSON.stringify(stateManager.nodes.value)
+	}
 	const exportFlow = () => {
 		// flowManager.exportFlow()
-
-		const str = JSON.stringify(stateManager.nodes.value)
+		const str = getFlowJson()
+		stateManager.isSave.value = false
 		emit('exportFlow', str)
 		// localStorage.setItem('flow_json', str)
 	}
@@ -259,6 +263,9 @@
 		nodeManager.dispose()
 		toolManager.dispose()
 	})
+	defineExpose({
+		getFlowJson
+	})
 </script>
 <style lang="less">
 	@import '@vue-flow/core/dist/style.css';