检测节点
| 区域/运营商 | 响应最快 | 响应最慢 | 平均响应 |
|---|---|---|---|
| 全部 | 天津移动0.158s | 海南海口联通0.967s | 0.542s |
| 电信 | 上海电信0.217s | 山西长治电信0.645s | 0.487s |
| 移动 | 天津移动0.158s | 云南昆明移动0.729s | 0.56s |
| 联通 | 天津联通0.159s | 海南海口联通0.967s | 0.595s |
| 华东 | 上海电信0.217s | 江苏联通0.753s | 0.524s |
| 华北 | 天津移动0.158s | 山西长治电信0.645s | 0.411s |
| 华南 | 广东广州移动0.616s | 海南海口联通0.967s | 0.741s |
| 华中 | 湖南长沙电信0.453s | 河南洛阳移动0.703s | 0.596s |
| 西北 | 甘肃庆阳移动0.449s | 青海西宁电信0.545s | 0.497s |
| 西南 | -0.456s | 云南昆明移动0.729s | 0.602s |
| 东北 | 吉林长春移动0.611s | 吉林长春联通0.731s | 0.671s |
|
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
贵州
|
39.105.6.54 （北京阿里云） | 200 | 0.456s | 0.001s | 0.04s |
下载时间：0.134s 下载大小：7.04KB 下载速度：52.537KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Thu, 15 Oct 2026 17:02:52 GMT Content-Type: text/html Content-Length: 162 Connection: keep-alive Location: https://kingsungmedical.com/ Strict-Transport-Security: max-age=31536000 HTTP/1.1 200 OK Server: nginx Date: Thu, 15 Oct 2026 17:02:53 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Vary: Accept-Encoding Set-Cookie: PHPSESSID=3cor430qllrf6ri45kq1g9lbg0; path=/ Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Strict-Transport-Security: max-age=31536000 Content-Encoding: gzip |
|
电信
海南海口
|
39.105.6.54 （北京阿里云） | 200 | 0.64s | 0.302s | 0.057s |
下载时间：0.001s 下载大小：7.04KB 下载速度：7040KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=to44l6o5kqa2m4ed6jdecu9vn4; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
电信
湖南长沙
|
39.105.6.54 （北京阿里云） | 200 | 0.453s | 0.125s | 0.042s |
下载时间：0.001s 下载大小：7.04KB 下载速度：7040KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=c15ba06efimn418t0a7q4gpk94; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
电信
江苏盐城
|
39.105.6.54 （北京阿里云） | 200 | 0.522s | 0.14s | 0.029s |
下载时间：0s 下载大小：7.04KB 下载速度：0KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=cedqivjs0ekcbhq3uq5qdvsdd6; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
电信
江西南昌
|
39.105.6.54 （北京阿里云） | 200 | 0.318s | 0.109s | 0.036s |
下载时间：0s 下载大小：7.04KB 下载速度：0KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=d5fvpq86gas0q9gg43b7kj3da7; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
电信
内蒙古包头
|
39.105.6.54 （北京阿里云） | 200 | 0.452s | 0.145s | 0.024s |
下载时间：0s 下载大小：7.04KB 下载速度：0KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=b2527100utss143p2al5qh14m1; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
电信
青海西宁
|
39.105.6.54 （北京阿里云） | 200 | 0.545s | 0.167s | 0.031s |
下载时间：0.001s 下载大小：7.04KB 下载速度：7040KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=m3j93vtrrmpevg6l9qo3ko6ej7; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
电信
山西长治
|
39.105.6.54 （北京阿里云） | 200 | 0.645s | 0.244s | 0.018s |
下载时间：0s 下载大小：7.04KB 下载速度：0KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=cadbrkncil6f6sjba3jhrjf6a1; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
电信
上海
|
39.105.6.54 （北京阿里云） | 200 | 0.217s | 0.083s | 0.025s |
下载时间：0s 下载大小：7.04KB 下载速度：0KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=hm2put575m7mnk8jnatdruja96; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
电信
云南昆明
|
39.105.6.54 （北京阿里云） | 200 | 0.625s | 0.159s | 0.05s |
下载时间：0.001s 下载大小：7.04KB 下载速度：7040KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=iovok4qugmuvg5ju6u9bfsa2j7; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
电信
浙江宁波
|
39.105.6.54 （北京阿里云） | 200 | 0.486s | 0.117s | 0.035s |
下载时间：0s 下载大小：7.04KB 下载速度：0KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=q5cdncim4kq065vqka7ef4clq5; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
移动
内蒙古
|
39.105.6.54 （北京阿里云） | 200 | 0.606s | 0.001s | 0.035s |
下载时间：0.151s 下载大小：7.04KB 下载速度：46.623KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Thu, 15 Oct 2026 17:02:33 GMT Content-Type: text/html Content-Length: 162 Connection: keep-alive Location: https://kingsungmedical.com/ Strict-Transport-Security: max-age=31536000 HTTP/1.1 200 OK Server: nginx Date: Thu, 15 Oct 2026 17:02:33 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Vary: Accept-Encoding Set-Cookie: PHPSESSID=i06hq6tngkdsa1ktc5bcmjvvb3; path=/ Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Strict-Transport-Security: max-age=31536000 Content-Encoding: gzip |
|
移动
安徽合肥
|
39.105.6.54 （北京阿里云） | 200 | 0.643s | 0.212s | 0.032s |
下载时间：0.001s 下载大小：7.04KB 下载速度：7040KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=kqbn90j3390asll39a2t63e6a3; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
移动
甘肃庆阳
|
39.105.6.54 （北京阿里云） | 200 | 0.449s | 0.193s | 0.033s |
下载时间：0.001s 下载大小：7.04KB 下载速度：7040KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=8voenr3lnc11d8ftpvs8bntu76; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
移动
广东广州
|
39.105.6.54 （北京阿里云） | 200 | 0.616s | 0.19s | 0.043s |
下载时间：0s 下载大小：7.04KB 下载速度：0KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=06ebdhf78u0ubqjn1oc64g3qb1; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
移动
贵州贵阳
|
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：
|
|
移动
河南洛阳
|
39.105.6.54 （北京阿里云） | 200 | 0.703s | 0.481s | 0.022s |
下载时间：0.001s 下载大小：7.04KB 下载速度：7040KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=vvvn76o8id5q90emr79c6dkd65; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
移动
湖北武汉
|
39.105.6.54 （北京阿里云） | 200 | 0.633s | 0.259s | 0.029s |
下载时间：0.001s 下载大小：7.04KB 下载速度：7040KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=s8iamfjk61hn5t3kjqqsgjd824; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
移动
吉林长春
|
39.105.6.54 （北京阿里云） | 200 | 0.611s | 0.338s | 0.028s |
下载时间：0s 下载大小：7.04KB 下载速度：0KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=6jkjm4rb4b9lh3c3ksd5quip14; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
移动
山西长治
|
39.105.6.54 （北京阿里云） | 200 | 0.448s | 0.178s | 0.02s |
下载时间：0s 下载大小：7.04KB 下载速度：0KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=siqmmn2lphafce77aqjv4e8r63; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
移动
天津
|
39.105.6.54 （北京阿里云） | 200 | 0.158s | 0.069s | 0.012s |
下载时间：0s 下载大小：7.04KB 下载速度：0KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=j0rqadtiskl5jkp1gkgvbm1p04; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
移动
云南昆明
|
39.105.6.54 （北京阿里云） | 200 | 0.729s | 0.305s | 0.057s |
下载时间：0s 下载大小：7.04KB 下载速度：0KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=59m8cjbbn2v16t7ot6hc320ak4; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
联通
江西
|
39.105.6.54 （北京阿里云） | 200 | 0.73s | 0.001s | 0.046s |
下载时间：0.314s 下载大小：7.04KB 下载速度：22.42KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Thu, 15 Oct 2026 17:02:33 GMT Content-Type: text/html Content-Length: 162 Connection: keep-alive Location: https://kingsungmedical.com/ Strict-Transport-Security: max-age=31536000 HTTP/1.1 200 OK Server: nginx Date: Thu, 15 Oct 2026 17:02:33 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Vary: Accept-Encoding Set-Cookie: PHPSESSID=pfpsmrcjv8odkm5emscbb1qc63; path=/ Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Strict-Transport-Security: max-age=31536000 Content-Encoding: gzip |
|
联通
北京
|
39.105.6.54 （北京阿里云） | 200 | 0.6s | 0.01s | 0.014s |
下载时间：0.063s 下载大小：7.04KB 下载速度：111.746KB/s HEAD：
HTTP/1.1 301 Moved Permanently Server: nginx Date: Thu, 15 Oct 2026 17:02:32 GMT Content-Type: text/html Content-Length: 162 Connection: keep-alive Location: https://kingsungmedical.com/ Strict-Transport-Security: max-age=31536000 HTTP/1.1 200 OK Server: nginx Date: Thu, 15 Oct 2026 17:02:33 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Vary: Accept-Encoding Set-Cookie: PHPSESSID=f2aphj9s6kb0a5tdjpjmlfsuc2; path=/ Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Strict-Transport-Security: max-age=31536000 Content-Encoding: gzip |
|
联通
贵州贵阳
|
39.105.6.54 （北京阿里云） | 200 | 0.597s | 0.343s | 0.042s |
下载时间：0s 下载大小：7.04KB 下载速度：0KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=b6ibn8ekhk8qcfsornuo7ab5r7; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
联通
海南海口
|
39.105.6.54 （北京阿里云） | 200 | 0.967s | 0.742s | 0.055s |
下载时间：0.001s 下载大小：7.04KB 下载速度：7040KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=hu435rematrlfkrqbre50ucc84; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
联通
河北廊坊
|
39.105.6.54 （北京阿里云） | 200 | 0.219s | 0.108s | 0.018s |
下载时间：0.001s 下载大小：7.04KB 下载速度：7040KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=chno0c84g45tbs65nacob7mck3; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
联通
吉林长春
|
39.105.6.54 （北京阿里云） | 200 | 0.731s | 0.593s | 0.024s |
下载时间：0s 下载大小：7.04KB 下载速度：0KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=qr869kaj92a5ufug0htcgn14c5; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
联通
江苏
|
39.105.6.54 （北京阿里云） | 200 | 0.753s | 0.464s | 0.049s |
下载时间：0.001s 下载大小：7.04KB 下载速度：7040KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=h86cmjtb3l8oig0cfu4p67vgj3; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
|
联通
天津
|
39.105.6.54 （北京阿里云） | 200 | 0.159s | 0.073s | 0.011s |
下载时间：0.001s 下载大小：7.04KB 下载速度：7040KB/s HEAD：
HTTP/2.0 200 OK Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Content-Encoding: gzip Content-Type: text/html; charset=UTF-8 Date: Thu, 15 Oct 2026 17:02:33 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: PHPSESSID=o7q23r5i4nofha571hk6rte4e3; path=/ Strict-Transport-Security: max-age=31536000 Vary: Accept-Encoding |
查询结果仅供参考，不保证100%准确。
最新检测
网站测速
PING检测
劫持检测
