校园文件管理系统源码解析:Spring Boot上传分片与权限避坑指南
2026/10/20 17:23:41
每个广告平台的完整字符限制、格式要求和最佳实践。
| Element | Character Limit | Required | Notes |
|---|---|---|---|
| Headline | 30 chars | 3 minimum, 15 max | Any 3 may be shown together |
| Description | 90 chars | 2 minimum, 4 max | Any 2 may be shown together |
| Display path 1 | 15 chars | Optional | Appears after domain in URL |
| Display path 2 | 15 chars | Optional | Appears after path 1 |
| Final URL | No limit | Required | Landing page URL |
组合规则:
固定策略:
标题混合推荐(15个标题):
描述混合推荐(4个描述):
| Element | Character Limit | Notes |
|---|---|---|
| Headline | 30 chars (5 required) | Short headlines for various placements |
| Long headline | 90 chars (5 required) | Used in display, video, discover |
| Description | 90 chars (1 required, 5 max) | Accompany various ad formats |
| Business name | 25 chars | Required |
| Element | Character Limit |
|---|---|
| Headline | 30 chars |
| Long headline | 90 chars |
| Description | 90 chars |
| Business name | 25 chars |
| Element | Recommended | Maximum | Notes |
|---|---|---|---|
| Primary text | 125 chars | 2,200 chars | Text above image; truncated after ~125 |
| Headline | 40 chars | 255 chars | Below image; truncated after ~40 |
| Description | 30 chars | 255 chars | Below headline; may not show |
| URL display link | 40 chars | N/A | Optional custom display URL |
与位置相关的注意事项:
最佳实践:
| Element | Limit |
|---|---|
| Greeting headline | 60 chars |
| Greeting description | 360 chars |
| Privacy policy text | 200 chars |
| Element | Recommended | Maximum | Notes |
|---|---|---|---|
| Intro text | 150 chars | 600 chars | Above the image; truncated after ~150 |
| Headline | 70 chars | 200 chars | Below the image |
| Description | 100 chars | 300 chars | Only shows on Audience Network |
| Element | Limit |
|---|---|
| Intro text | 255 chars |
| Card headline | 45 chars |
| Card count | 2-10 cards |
| Element | Limit |
|---|---|
| Subject line | 60 chars |
| Message body | 1,500 chars |
| CTA button | 20 chars |
| Element | Limit |
|---|---|
| Headline | 25 chars |
| Description | 75 chars |
LinkedIn 专用指南:
| Element | Recommended | Maximum | Notes |
|---|---|---|---|
| Ad text | 80 chars | 100 chars | Above the video |
| Display name | N/A | 40 chars | Brand name |
| CTA button | Platform options | Predefined | Select from TikTok’s options |
| Element | Notes |
|---|---|
| Caption | Uses original post caption |
| CTA button | Added by advertiser |
| Display name | Original creator’s handle |
TikTok 专用指南:
| Element | Limit | Notes |
|---|---|---|
| Tweet text | 280 chars | Full tweet with image/video |
| Card headline | 70 chars | Website card |
| Card description | 200 chars | Website card |
| Element | Limit |
|---|---|
| Headline | 70 chars |
| Description | 200 chars |
Twitter/X 特定指南:
{KeyWord:default}) 可能超出限制 — 设置安全默认值在同时为多个平台创建内容时,从最受限制的格式开始:
这种层叠方法确保你的核心信息在各处都适用,然后在允许更多展示空间的平台上得到丰富。