net

进程：

net 模块是一个发送 HTTP(S) 请求的客户端API。 它类似于Node.js的HTTP 和 模块 ，但它使用的是Chromium原生网络库来替代Node.js的实现，提供更好的网络代理支持。 它还支持检查网络状态。

下面是一个非详尽的列表, 用于说明为什么使用 net 模块而不是原生Node. js 模块:

• HTTPS 请求的自动隧道。
• 支持使用basic、digest、NTLM、Kerberos 或协商身份验证方案对代理进行身份验证。

Example usage:

The net API can be used only after the application emits the ready event. Trying to use the module before the ready event will throw an error.

模块具有以下方法:

• options (ClientRequestConstructorOptions | String) - The ClientRequest constructor options.

使用 options 创建 ClientRequest 实例, 这些选项直接转发到 ClientRequest 的构造函数。 方法将根据 options 对象中的指定协议方案, 去发送安全和不安全的 HTTP 请求（ both secure and insecure HTTP requests）。

Returns Boolean - Whether there is currently internet connection.

A return value of false is a pretty strong indicator that the user won’t be able to connect to remote sites. However, a return value of true is inconclusive; even if some link is up, it is uncertain whether a particular connection attempt to a particular remote site will be successful.

Properties

A return value of is a pretty strong indicator that the user won’t be able to connect to remote sites. However, a return value of true is inconclusive; even if some link is up, it is uncertain whether a particular connection attempt to a particular remote site will be successful.