'cf_chl_2=; path=/; expires=Thu, Jan 01 1970 00:00:00 UTC; domain=.hapag-lloyd.cn; Secure cf_clearance=_bPJegR0K9V1oLHj1q6CodoEy.VtCIG.5blzf_apuo8-1685521974-0-1-52c890dc.a1562d2.5c9cf3c-150; path=/; expires=Thu, 30-May-24 08:33:17 GMT; domain=.hapag-lloyd.cn; HttpOnly; Secure; SameSite=None JSESSIONID=0000o-eXbD2_vMuDve4wvrocSht:1b25u3v61; Path=/; Secure; HttpOnly _cfuvid=.gbcpwGfJAd2RXX7_oPWKDgVf0oizmZk6gBJpHD1nW4-1685521998412-0-604800000; path=/; domain=.hapag-lloyd.cn; HttpOnly; Secure; SameSite=None' 用js 写正则 提取cf_chl_2=; path=
时间: 2023-10-13 12:06:15 浏览: 44
可以使用正则表达式提取 cookie 字符串中的 `cf_chl_2` 字段。以下是一个提取的示例正则表达式:
```javascript
const cookieStr = 'cf_chl_2=; path=/; expires=Thu, Jan 01 1970 00:00:00 UTC; domain=.hapag-lloyd.cn; Secure cf_clearance=_bPJegR0K9V1oLHj1q6CodoEy.VtCIG.5blzf_apuo8-1685521974-0-1-52c890dc.a1562d2.5c9cf3c-150; path=/; expires=Thu, 30-May-24 08:33:17 GMT; domain=.hapag-lloyd.cn; HttpOnly; Secure; SameSite=None JSESSIONID=0000o-eXbD2_vMuDve4wvrocSht:1b25u3v61; Path=/; Secure; HttpOnly _cfuvid=.gbcpwGfJAd2RXX7_oPWKDgVf0oizmZk6gBJpHD1nW4-1685521998412-0-604800000; path=/; domain=.hapag-lloyd.cn; HttpOnly; Secure; SameSite=None';
const regex = /cf_chl_2=.*?(?=;)/;
const match = cookieStr.match(regex);
const cf_chl_2 = match ? match[0] : null;
console.log(cf_chl_2);
// Output: cf_chl_2=
```
上述正则表达式的含义是匹配以 `cf_chl_2` 开头,后面跟随任意字符直到遇到分号的子串。`(?=;)` 是一个正向预查,表示匹配结束位置是分号,但不包含分号在内。