检测节点
| 区域/运营商 | 响应最快 | 响应最慢 | 平均响应 |
|---|---|---|---|
| 全部 | -0.144s | 湖南长沙移动1.242s | 0.963s |
| 电信 | -0.144s | 江苏淮安电信1.078s | 0.814s |
| 移动 | 辽宁大连移动0.876s | 湖南长沙移动1.242s | 1.036s |
| 联通 | 河北廊坊联通0.891s | 辽宁盘锦联通1.211s | 1.041s |
| 华东 | -0.144s | 江苏淮安电信1.078s | 0.875s |
| 华北 | -0.434s | -1.076s | 0.897s |
| 华南 | 目标无法访问 | ||
| 华中 | 河南洛阳联通0.958s | 湖南长沙移动1.242s | 1.062s |
| 西北 | 陕西西安联通0.929s | 新疆昌吉回族自治州联通1.199s | 1.058s |
| 西南 | 四川成都移动0.996s | 西藏拉萨移动1.204s | 1.1s |
| 东北 | 辽宁大连移动0.876s | 辽宁盘锦联通1.211s | 1.012s |
|
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
北京
|
47.93.47.109 （北京阿里云） | 200 | 0.434s | 0.019s | 0.008s |
下载时间：0.003s 下载大小：5.48KB 下载速度：1826.667KB/s HEAD：
HTTP/1.1 200 OK Server: nginx Date: Mon, 02 Nov 2026 16:50:05 GMT Content-Type: text/html; charset=utf-8 Transfer-Encoding: chunked Connection: keep-alive Vary: Accept-Encoding X-UA-Compatible: IE=edge,chrome=1 Set-Cookie: lg=cn; path=/ Set-Cookie: PbootSystem=ock4s56geavq29rf37dc8mhikv; path=/ Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate Pragma: no-cache Content-Encoding: gzip |
|
电信
山东
|
47.93.47.109 （北京阿里云） | 200 | 0.144s | 0.038s | 0.023s |
下载时间：0.002s 下载大小：5.48KB 下载速度：2740KB/s HEAD：
HTTP/1.1 200 OK Server: nginx Date: Mon, 02 Nov 2026 16:50:24 GMT Content-Type: text/html; charset=utf-8 Transfer-Encoding: chunked Connection: keep-alive Vary: Accept-Encoding X-UA-Compatible: IE=edge,chrome=1 Set-Cookie: lg=cn; path=/ Set-Cookie: PbootSystem=eeujegqf2asoh50rvgd73olg6e; path=/ Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate Pragma: no-cache Content-Encoding: gzip |
|
电信
安徽合肥
|
47.93.47.109 （北京阿里云） | 200 | 0.976s | 0.036s | 0.029s |
下载时间：0.003s 下载大小：5.48KB 下载速度：1826.667KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=fr3v14kn6psd46f2csjnslqtgb; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
电信
湖北天门
|
47.93.47.109 （北京阿里云） | 200 | 1.025s | 0.052s | 0.03s |
下载时间：0.001s 下载大小：5.48KB 下载速度：5480KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=a3v5orpkgujn4rd7f2dtrknf2c; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
电信
湖南岳阳
|
47.93.47.109 （北京阿里云） | 200 | 1.021s | 0.03s | 0.047s |
下载时间：0s 下载大小：5.48KB 下载速度：0KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=r4ih51ueo16oora6v5t746qol7; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
电信
江苏淮安
|
47.93.47.109 （北京阿里云） | 200 | 1.078s | 0.074s | 0.027s |
下载时间：0s 下载大小：5.48KB 下载速度：0KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=eqrq1sm5ba0d5ip6359dln77jp; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
电信
江西南昌
|
47.93.47.109 （北京阿里云） | 200 | 1.046s | 0.048s | 0.042s |
下载时间：0.001s 下载大小：5.48KB 下载速度：5480KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=d3ihvc087brli60hlpnl2mddni; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
电信
辽宁盘锦
|
47.93.47.109 （北京阿里云） | 200 | 0.95s | 0.059s | 0.021s |
下载时间：0.009s 下载大小：5.48KB 下载速度：608.889KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=e4kjh498gsrs6fu7vdrudvh5d4; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
电信
陕西西安
|
47.93.47.109 （北京阿里云） | 200 | 0.944s | 0.031s | 0.021s |
下载时间：0.009s 下载大小：5.48KB 下载速度：608.889KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=7o416v08st3j5pmul2lmrhpf9t; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
电信
上海
|
47.93.47.109 （北京阿里云） | 200 | 0.526s | 0.012s | 0.03s |
下载时间：0s 下载大小：5.48KB 下载速度：0KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=83pfs25d8jmgu43bv6ml5l4o5d; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
移动
内蒙古
|
47.93.47.109 （北京阿里云） | 200 | 1.076s | 0.072s | 0.027s |
下载时间：0.002s 下载大小：5.48KB 下载速度：2740KB/s HEAD：
HTTP/1.1 200 OK Server: nginx Date: Mon, 02 Nov 2026 16:50:05 GMT Content-Type: text/html; charset=utf-8 Transfer-Encoding: chunked Connection: keep-alive Vary: Accept-Encoding X-UA-Compatible: IE=edge,chrome=1 Set-Cookie: lg=cn; path=/ Set-Cookie: PbootSystem=dgt4c9f0b6t66p5adrnp3rtgv4; path=/ Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate Pragma: no-cache Content-Encoding: gzip |
|
移动
安徽芜湖
|
47.93.47.109 （北京阿里云） | 200 | 0.968s | 0.038s | 0.027s |
下载时间：0.001s 下载大小：5.48KB 下载速度：5480KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=mun23oih0gan3dj0i56o4svp0a; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
移动
福建福州
|
47.93.47.109 （北京阿里云） | 200 | 0.899s | 0.05s | 0.044s |
下载时间：0s 下载大小：5.48KB 下载速度：0KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=04uo33t4rk3j2kt2c7kr6viqo4; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
移动
广东广州
|
47.93.47.109 （北京阿里云） | 200 | 1.025s | 0.046s | 0.036s |
下载时间：0.002s 下载大小：5.48KB 下载速度：2740KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=v01j8vmemkcc0mq4tstmivtbmu; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
移动
湖南长沙
|
47.93.47.109 （北京阿里云） | 200 | 1.242s | 0.029s | 0.036s |
下载时间：0.002s 下载大小：5.48KB 下载速度：2740KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=cr1btrcs73qoo9tfss7tq6l0f9; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
移动
辽宁大连
|
47.93.47.109 （北京阿里云） | 200 | 0.876s | 0.036s | 0.022s |
下载时间：0.003s 下载大小：5.48KB 下载速度：1826.667KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=mgq3hmbs3am8287vefgeraplk1; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
移动
山西忻州
|
47.93.47.109 （北京阿里云） | 200 | 1.017s | 0.038s | 0.024s |
下载时间：0s 下载大小：5.48KB 下载速度：0KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=5k8jrclqgaa7ru7q5s9tcu38nc; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
移动
四川成都
|
47.93.47.109 （北京阿里云） | 200 | 0.996s | 0.042s | 0.037s |
下载时间：0.002s 下载大小：5.48KB 下载速度：2740KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=opgcqbbutltj3oj8om06f0nlse; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
移动
天津
|
47.93.47.109 （北京阿里云） | 200 | 0.897s | 0.029s | 0.012s |
下载时间：0s 下载大小：5.48KB 下载速度：0KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=gh9gqfqsc63mjb2ng67euhomj8; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
移动
西藏拉萨
|
47.93.47.109 （北京阿里云） | 200 | 1.204s | 0.142s | 0.071s |
下载时间：0.006s 下载大小：5.48KB 下载速度：913.333KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=1dbcab7icellq7r644393fi594; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
移动
新疆昌吉回族自治州
|
47.93.47.109 （北京阿里云） | 200 | 1.191s | 0.065s | 0.046s |
下载时间：0.001s 下载大小：5.48KB 下载速度：5480KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=06mc25paai6ueg123qlqki2q6t; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
联通
北京
|
47.93.47.109 （北京阿里云） | 200 | 1.068s | 0.013s | 0.008s |
下载时间：0.016s 下载大小：5.48KB 下载速度：342.5KB/s HEAD：
HTTP/1.1 200 OK Server: nginx Date: Mon, 02 Nov 2026 16:50:05 GMT Content-Type: text/html; charset=utf-8 Transfer-Encoding: chunked Connection: keep-alive Vary: Accept-Encoding X-UA-Compatible: IE=edge,chrome=1 Set-Cookie: lg=cn; path=/ Set-Cookie: PbootSystem=ivo7fmravkamm9o28n7769hrv4; path=/ Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate Pragma: no-cache Content-Encoding: gzip |
|
联通
安徽芜湖
|
47.93.47.109 （北京阿里云） | 200 | 1.03s | 0.039s | 0.027s |
下载时间：0.004s 下载大小：5.48KB 下载速度：1370KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=va8ab82u83kr2g8n8pj0bl4jrc; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
联通
河北廊坊
|
47.93.47.109 （北京阿里云） | 200 | 0.891s | 0.059s | 0.013s |
下载时间：0.001s 下载大小：5.48KB 下载速度：5480KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=643vrqlf63alda05pmjetgbq6h; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
联通
河南洛阳
|
47.93.47.109 （北京阿里云） | 200 | 0.958s | 0.113s | 0.019s |
下载时间：0.001s 下载大小：5.48KB 下载速度：5480KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=238b3ga187r5ooitv6hgj6vi8k; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
联通
辽宁盘锦
|
47.93.47.109 （北京阿里云） | 200 | 1.211s | 0.117s | 0.027s |
下载时间：0.008s 下载大小：5.48KB 下载速度：685KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=u7ocpcpir9clkccnn41ha3ai6a; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
联通
山东威海
|
47.93.47.109 （北京阿里云） | 200 | 1.036s | 0.042s | 0.022s |
下载时间：0.003s 下载大小：5.48KB 下载速度：1826.667KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=v5292p7l5rtvlnoq7p46tcodhl; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
联通
陕西西安
|
47.93.47.109 （北京阿里云） | 200 | 0.929s | 0.046s | 0.025s |
下载时间：0s 下载大小：5.48KB 下载速度：0KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=1olf2p77e5a5fum2riuu9iqm44; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
联通
新疆昌吉回族自治州
|
47.93.47.109 （北京阿里云） | 200 | 1.199s | 0.076s | 0.052s |
下载时间：0.002s 下载大小：5.48KB 下载速度：2740KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=1l8g6th9h06j9cnj22qpvopiuu; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
|
联通
浙江温州
|
47.93.47.109 （北京阿里云） | 200 | 1.047s | 0.051s | 0.042s |
下载时间：0.003s 下载大小：5.48KB 下载速度：1826.667KB/s HEAD：
HTTP/1.1 200 OK Cache-Control: no-store, no-cache, must-revalidate Connection: keep-alive Content-Encoding: gzip Content-Type: text/html; charset=utf-8 Date: Mon, 02 Nov 2026 16:50:05 GMT Expires: Thu, 19 Nov 1981 08:52:00 GMT Pragma: no-cache Server: nginx Set-Cookie: lg=cn; path=/, PbootSystem=vvahbqm1oq53cihtl69fbk90k9; path=/ Vary: Accept-Encoding X-Ua-Compatible: IE=edge,chrome=1 |
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
