前言
n8n的系统性学习，对各知识点地毯式学习🔍~
前面课程
定制n8n的AI老师，有AI老师制定学习大纲，参考之前的文档（本系列n8n学习大纲，也在这里）：
【n8n】如何跟着AI学习n8n_01：定制AI老师-CSDN博客
第一课开始基础知识学习
【n8n】如何跟着AI学习n8n【02】：基础节点学习-CSDN博客
👌好了，下面是第一课的大练习💪
🧭 Day 6：实战项目练习 ------ 构建用户注册自动审核流程
🧩 项目背景：用户注册自动审核流程
当用户注册后，系统自动判断其年龄是否大于 18 岁：
- ✅ 如果大于 18 岁：发送欢迎邮件（或 Slack 消息）
- ❌ 如果小于 18 岁：发送审核通知，并等待人工审核
- 🧠 最终合并两个分支，输出注册流程总结
🧪 实战任务：构建完整流程
创建一个自动化流程，实现以下逻辑：
Start → Set（模拟注册数据）
↓
IF（判断 age > 18）
├─ Yes → Function（生成欢迎语）
└─ No → Function（生成审核提示）→ Wait（等待 3 秒）
↓
Merge（合并两个分支）
↓
Function（流程总结）
🧰 实战练习答案
小伙伴们，学完第一课，自己做一下，再看答案哦*。***
工作流设计图：
json代码：
{
"name": "练习：邮件4",
"nodes": [
{
"parameters": {
"values": {
"string": [
{
"name": "name",
"value": "John"
}
],
"number": [
{
"name": "age",
"value": 16
}
]
},
"options": {}
},
"name": "Set",
"type": "n8n-nodes-base.set",
"typeVersion": 1,
"position": [
-580,
-180
],
"id": "687e513f-cb0b-4f9d-b3a9-3d9ab07bd81d"
},
{
"parameters": {
"conditions": {
"number": [
{
"value1": "={{ $json.age }}",
"operation": "larger",
"value2": 18
}
]
}
},
"name": "IF",
"type": "n8n-nodes-base.if",
"typeVersion": 1,
"position": [
-420,
-180
],
"id": "d910c94b-3e05-4462-bb22-dba6daa9c29f"
},
{
"parameters": {
"functionCode": "const name = $input.item.json.name;\nreturn [{ json: { message: `Welcome, ${name}! You are an adult.` } }];"
},
"name": "Welcome Message",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
-260,
-260
],
"id": "061141c3-609f-4ca9-8af0-c4f4152302b5"
},
{
"parameters": {
"functionCode": "const name = $input.item.json.name;\nreturn [{ json: { message: `Hi ${name}, we need to review your registration.` } }];"
},
"name": "Need Review",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
-260,
-60
],
"id": "61c172e4-92d4-4da7-9def-c6a29749bb1f"
},
{
"parameters": {
"functionCode": "const branch1 = $input.item.pairedItem ? $input.item.pairedItem.message : null;\nconst branch2 = $input.item.pairedItem ? $input.item.pairedItem.message : null;\n\nconst summary = {\n adultMessage: branch1,\n reviewMessage: branch2,\n finalStatus: branch1 ? 'Approved' : 'Pending Review'\n};\n\nreturn [{ json: summary }];"
},
"name": "Summary",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
120,
-260
],
"id": "136fc016-bae9-4dc3-b0ed-a67cdc680eae"
},
{
"parameters": {},
"type": "n8n-nodes-base.manualTrigger",
"typeVersion": 1,
"position": [
-760,
-180
],
"id": "96463165-296d-4e66-8f8d-97754b1d9daa",
"name": "When clicking 'Test workflow'"
},
{
"parameters": {
"amount": 3,
"unit": "seconds"
},
"name": "Wait 3s",
"type": "n8n-nodes-base.wait",
"typeVersion": 1,
"position": [
-40,
-80
],
"id": "19a53a37-9124-44bf-ac50-709ca2f8f43f",
"webhookId": "ce0dd3af-9f3c-4a10-8895-1d8b6edcfb86"
}
],
"pinData": {},
"connections": {
"Set": {
"main": [
[
{
"node": "IF",
"type": "main",
"index": 0
}
]
]
},
"IF": {
"main": [
[
{
"node": "Welcome Message",
"type": "main",
"index": 0
}
],
[
{
"node": "Need Review",
"type": "main",
"index": 0
}
]
]
},
"Need Review": {
"main": [
[
{
"node": "Wait 3s",
"type": "main",
"index": 0
}
]
]
},
"Welcome Message": {
"main": [
[
{
"node": "Summary",
"type": "main",
"index": 0
}
]
]
},
"When clicking 'Test workflow'": {
"main": [
[
{
"node": "Set",
"type": "main",
"index": 0
}
]
]
},
"Wait 3s": {
"main": [
[
{
"node": "Summary",
"type": "main",
"index": 0
}
]
]
}
},
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "63042f5a-5bd8-4127-8fef-6daea259f9dc",
"meta": {
"instanceId": "70694156c5a96e4fa7ffae62a18b0c6b4ad4724f1ccc008ab89d5c4dcc7c8b4d"
},
"id": "BveqapjozzHygXiO",
"tags": []
}提示：
工作流导入json：新建一个工作流，直接把json代码拷贝到工作流面板，字段解析为工作流程，或者把上面代码存在.json文件，导入。