检测节点
| 区域/运营商 | 响应最快 | 响应最慢 | 平均响应 |
|---|---|---|---|
| 全部 | 浙江杭州移动0.168s | 北京移动7.907s | 0.96s |
| 电信 | 上海电信0.194s | -0.741s | 0.47s |
| 移动 | 浙江杭州移动0.168s | 北京移动7.907s | 1.412s |
| 联通 | -0.488s | 浙江温州联通0.83s | 0.672s |
| 华东 | 浙江杭州移动0.168s | 浙江温州联通0.83s | 0.518s |
| 华北 | -0.378s | 北京移动7.907s | 2.366s |
| 华南 | -0.43s | -2.749s | 1.213s |
| 华中 | -0.315s | -1.212s | 0.764s |
| 西北 | -0.47s | -0.75s | 0.642s |
| 西南 | 云南昆明电信0.41s | -1.628s | 1.058s |
| 东北 | 辽宁大连移动0.591s | 辽宁沈阳电信0.63s | 0.611s |
|
检测点
运营商
检测节点
|
解析IP |
状态 |
总时间 |
解析时间 |
连接时间 |
操作 |
|---|---|---|---|---|---|---|
|
电信
宁夏
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.47s | 0.129s | 0.043s |
下载时间：0.242s 下载大小：0.24KB 下载速度：0.992KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
电信
新疆
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.741s | 0.089s | 0.086s |
下载时间：0.468s 下载大小：0.24KB 下载速度：0.513KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
电信
安徽
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.544s | 0.206s | 0.02s |
下载时间：0.279s 下载大小：0.24KB 下载速度：0.86KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
电信
广西
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.43s | 0.089s | 0.044s |
下载时间：0.239s 下载大小：0.24KB 下载速度：1.004KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
电信
湖北
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.315s | 0.246s | 0.002s |
下载时间：0.002s 下载大小：0.53KB 下载速度：265KB/s HEAD：
HTTP/1.1 200 OK Content-Type: text/html Content-Length: 545 Connection: close |
|
电信
福建福州
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.518s | 0.399s | 0.04s |
下载时间：0.001s 下载大小：0.24KB 下载速度：240KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
电信
辽宁沈阳
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.63s | 0.39s | 0.105s |
下载时间：0s 下载大小：0.24KB 下载速度：0KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
电信
上海
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.194s | 0.097s | 0.031s |
下载时间：0.001s 下载大小：0.24KB 下载速度：240KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:40 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
电信
云南昆明
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.41s | 0.22s | 0.08s |
下载时间：0s 下载大小：0.24KB 下载速度：0KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
电信
浙江温州
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.447s | 0.359s | 0.028s |
下载时间：0s 下载大小：0.24KB 下载速度：0KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:40 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
移动
西藏
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.809s | 0.245s | 0.059s |
下载时间：0.431s 下载大小：0.24KB 下载速度：0.557KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:57 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:57 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
移动
四川
|
120.55.51.124 （浙江杭州阿里云） | 200 | 1.383s | 0.396s | 0.059s |
下载时间：0.853s 下载大小：0.24KB 下载速度：0.281KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:42 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:42 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
移动
湖南
|
120.55.51.124 （浙江杭州阿里云） | 200 | 1.212s | 0.197s | 0.045s |
下载时间：0.908s 下载大小：0.24KB 下载速度：0.264KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:42 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:42 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
移动
山西
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.378s | 0.035s | 0.041s |
下载时间：0.245s 下载大小：0.24KB 下载速度：0.98KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
移动
贵州
|
120.55.51.124 （浙江杭州阿里云） | 200 | 1.628s | 0.816s | 0.047s |
下载时间：0.702s 下载大小：0.24KB 下载速度：0.342KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:42 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
移动
海南
|
120.55.51.124 （浙江杭州阿里云） | 200 | 2.749s | 1.248s | 0.047s |
下载时间：1.395s 下载大小：0.24KB 下载速度：0.172KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:42 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:43 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
移动
江苏
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.609s | 0.17s | 0.026s |
下载时间：0.374s 下载大小：0.24KB 下载速度：0.642KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
移动
青海
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.75s | 0.148s | 0.062s |
下载时间：0.477s 下载大小：0.24KB 下载速度：0.503KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:47 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:47 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
移动
北京
|
120.55.51.124 （浙江杭州阿里云） | 200 | 7.907s | 7.752s | 0.062s |
下载时间：0s 下载大小：0.24KB 下载速度：0KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:47 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:48 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
移动
广西
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.46s | 0.238s | 0.096s |
下载时间：0.001s 下载大小：0.24KB 下载速度：240KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
移动
江西宜春
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.429s | 0.291s | 0.054s |
下载时间：0s 下载大小：0.24KB 下载速度：0KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
移动
辽宁大连
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.591s | 0.357s | 0.102s |
下载时间：0.001s 下载大小：0.24KB 下载速度：240KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
移动
内蒙古阿拉善盟
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.692s | 0.465s | 0.099s |
下载时间：0s 下载大小：0.24KB 下载速度：0KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
移动
浙江杭州
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.168s | 0.077s | 0.032s |
下载时间：0s 下载大小：0.24KB 下载速度：0KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:40 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
联通
甘肃
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.606s | 0.026s | 0.047s |
下载时间：0.472s 下载大小：0.24KB 下载速度：0.508KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
联通
安徽
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.649s | 0.244s | 0.018s |
下载时间：0.355s 下载大小：0.24KB 下载速度：0.676KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
联通
天津
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.488s | 0.064s | 0.029s |
下载时间：0.353s 下载大小：0.24KB 下载速度：0.68KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
联通
江苏
|
解析失败
解析失败：通常发生在网络请求中，设备无法通过DNS解析目标服务器的IP地。
|
0 | *s | *s | *s |
下载时间：*s 下载大小：*KB 下载速度：*KB/s HEAD：
|
|
联通
山东烟台
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.789s | 0.648s | 0.055s |
下载时间：0s 下载大小：0.24KB 下载速度：0KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
|
联通
浙江温州
|
120.55.51.124 （浙江杭州阿里云） | 200 | 0.83s | 0.725s | 0.039s |
下载时间：0s 下载大小：0.24KB 下载速度：0KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Set-Cookie: hidden=value; httpOnly location: http://www.graypel.com HTTP/1.1 200 OK Server: nginx Date: Sat, 22 Aug 2026 16:43:41 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 243 Connection: keep-alive Set-Cookie: hidden=value; httpOnly Vary: Accept-Encoding Content-Encoding: gzip |
查询结果仅供参考，不保证100%准确。
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