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类：CommandLine

类：CommandLine​

¥Class: CommandLine

操作 Chromium 读取的应用的命令行参数

¥Manipulate the command line arguments for your app that Chromium reads

进程：主进程
该类不是从 'electron' 模块导出的。它仅可用作 Electron API 中其他方法的返回值。

¥Process: Main
This class is not exported from the 'electron' module. It is only available as a return value of other methods in the Electron API.

以下示例显示如何检查 --disable-gpu 标志是否已设置。

¥The following example shows how to check if the --disable-gpu flag is set.

const { app } = require('electron')
app.commandLine.hasSwitch('disable-gpu')

有关可以使用哪些类型的标志和开关的更多信息，请查看 命令行开关 文档。

¥For more information on what kinds of flags and switches you can use, check out the Command Line Switches document.

实例方法​

¥Instance Methods

commandLine.appendSwitch(switch[, value])​

  • switch 字符串 - 命令行开关，不带前导 --。

    ¥switch string - A command-line switch, without the leading --.

  • value 字符串（可选） - 给定开关的值。

    ¥value string (optional) - A value for the given switch.

将一个开关（带有可选的 value）附加到 Chromium 的命令行。

¥Append a switch (with optional value) to Chromium's command line.

[!NOTE] 这不会影响 process.argv。该函数的预期用途是控制 Chromium 的行为。

¥[!NOTE] This will not affect process.argv. The intended usage of this function is to control Chromium's behavior.

const { app } = require('electron')

app.commandLine.appendSwitch('remote-debugging-port', '8315')

commandLine.appendArgument(value)​

  • value 字符串 - 要附加到命令行的参数。

    ¥value string - The argument to append to the command line.

将参数附加到 Chromium 的命令行。该参数将被正确引用。无论附加顺序如何，开关都将位于参数之前。

¥Append an argument to Chromium's command line. The argument will be quoted correctly. Switches will precede arguments regardless of appending order.

如果你要附加诸如 --switch=value 之类的参数，请考虑改用 appendSwitch('switch', 'value')。

¥If you're appending an argument like --switch=value, consider using appendSwitch('switch', 'value') instead.

const { app } = require('electron')

app.commandLine.appendArgument('--enable-experimental-web-platform-features')

[!NOTE] 这不会影响 process.argv。该函数的预期用途是控制 Chromium 的行为。

¥[!NOTE] This will not affect process.argv. The intended usage of this function is to control Chromium's behavior.

commandLine.hasSwitch(switch)​

  • switch 字符串 - 命令行开关。

    ¥switch string - A command-line switch.

返回 boolean - 命令行开关是否存在。

¥Returns boolean - Whether the command-line switch is present.

const { app } = require('electron')

app.commandLine.appendSwitch('remote-debugging-port', '8315')
const hasPort = app.commandLine.hasSwitch('remote-debugging-port')
console.log(hasPort) // true

commandLine.getSwitchValue(switch)​

  • switch 字符串 - 命令行开关。

    ¥switch string - A command-line switch.

返回 string - 命令行开关值。

¥Returns string - The command-line switch value.

此函数用于获取 Chromium 命令行开关。它不适用于特定于应用的命令行参数。对于后者，请使用 process.argv。

¥This function is meant to obtain Chromium command line switches. It is not meant to be used for application-specific command line arguments. For the latter, please use process.argv.

const { app } = require('electron')

app.commandLine.appendSwitch('remote-debugging-port', '8315')
const portValue = app.commandLine.getSwitchValue('remote-debugging-port')
console.log(portValue) // '8315'

[!NOTE] 当开关不存在或没有值时，它将返回空字符串。

¥[!NOTE] When the switch is not present or has no value, it returns empty string.

commandLine.removeSwitch(switch)​

  • switch 字符串 - 命令行开关。

    ¥switch string - A command-line switch.

从 Chromium 命令行中删除指定的开关。

¥Removes the specified switch from Chromium's command line.

const { app } = require('electron')

app.commandLine.appendSwitch('remote-debugging-port', '8315')
console.log(app.commandLine.hasSwitch('remote-debugging-port')) // true

app.commandLine.removeSwitch('remote-debugging-port')
console.log(app.commandLine.hasSwitch('remote-debugging-port')) // false

[!NOTE] 这不会影响 process.argv。该函数的预期用途是控制 Chromium 的行为。

¥[!NOTE] This will not affect process.argv. The intended usage of this function is to control Chromium's behavior.