在node_modules/@types/node - Definitions中查看到了console定义的interface源码，可以自己动手试试哦
源码展示
按住ctrl键点击console方法可查看以下代码:
declare module "console" {
import { InspectOptions } from 'util';
global {
// This needs to be global to avoid TS2403 in case lib.dom.d.ts is present in the same build
interface Console {
Console: NodeJS.ConsoleConstructor;
/**
* A simple assertion test that verifies whether `value` is truthy.
* If it is not, an `AssertionError` is thrown.
* If provided, the error `message` is formatted using `util.format()` and used as the error message.
* 一个简单的断言测试，用于验证“value”是否真实
* 如果不是，则抛出“AssertionError”
* 如果提供了错误“message”，则使用`util.格式（）`并用作错误消息
*/
assert(value: any, message?: string, ...optionalParams: any[]): void;
/**
* When `stdout` is a TTY, calling `console.clear()` will attempt to clear the TTY.
* When `stdout` is not a TTY, this method does nothing.
* 清除控制台的打印信息
*/
clear(): void;
/**
* Maintains an internal counter specific to `label` and outputs to `stdout` the number of times `console.count()` has been called with the given `label`.
* 维护特定于“label”的内部计数器，并将次数输出到“stdout”`控制台.count已使用给定的“label”调用了
* 可以自动输出每一次执行过的打印结果
*/
count(label?: string): void;
/**
* Resets the internal counter specific to `label`.
* 重置特定于“label”的内部计数器
*/
countReset(label?: string): void;
/**
* The `console.debug()` function is an alias for {@link console.log()}.
* 和console.log打印效果一样，但谷歌浏览器不支持console.debug
*/
debug(message?: any, ...optionalParams: any[]): void;
/**
* Uses {@link util.inspect()} on `obj` and prints the resulting string to `stdout`.
* This function bypasses any custom `inspect()` function defined on `obj`.
* 可打印Object对象
*/
dir(obj: any, options?: InspectOptions): void;
/**
* This method calls {@link console.log()} passing it the arguments received. Please note that this method does not produce any XML formatting
* 此方法调用{@link控制台.log（）}将收到的参数传递给它。请注意，此方法不生成任何XML格式
*/
dirxml(...data: any[]): void;
/**
* Prints to `stderr` with newline.
* 打印信息显示红色的错误图标
*/
error(message?: any, ...optionalParams: any[]): void;
/**
* Increases indentation of subsequent lines by two spaces.
* If one or more `label`s are provided, those are printed first without the additional indentation.
* 将后续行的缩进增加两个空格。
* 如果提供了一个或多个“label”，则首先打印这些标签，而不附加缩进
*/
group(...label: any[]): void;
/**
* The `console.groupCollapsed()` function is an alias for {@link console.group()}.
* console.group的别名
*/
groupCollapsed(...label: any[]): void;
/**
* Decreases indentation of subsequent lines by two spaces.
* 将后续行的缩进减少两个空格。
*/
groupEnd(): void;
/**
* The {@link console.info()} function is an alias for {@link console.log()}.
*/
info(message?: any, ...optionalParams: any[]): void;
/**
* Prints to `stdout` with newline.
* 用换行符打印到“stdout”
*/
log(message?: any, ...optionalParams: any[]): void;
/**
* This method does not display anything unless used in the inspector.
* Prints to `stdout` the array `array` formatted as a table.
* 此方法不显示任何内容，除非在检查器中使用。
* 打印到格式为表的数组array。
*/
table(tabularData: any, properties?: string[]): void;
/**
* Starts a timer that can be used to compute the duration of an operation. Timers are identified by a unique `label`.
* 启动可用于计算操作持续时间的计时器。计时器由唯一的“label”标识
*/
time(label?: string): void;
/**
* Stops a timer that was previously started by calling {@link console.time()} and prints the result to `stdout`.
* 计算console.time行开始到timeEnd行代码运行的时间
*/
timeEnd(label?: string): void;
/**
* For a timer that was previously started by calling {@link console.time()}, prints the elapsed time and other `data` arguments to `stdout`.
* 对于以前通过调用{@link console.time（）}，将运行时间和其他“data”参数打印到“stdout”。
*/
timeLog(label?: string, ...data: any[]): void;
/**
* Prints to `stderr` the string 'Trace :', followed by the {@link util.format()} formatted message and stack trace to the current position in the code.
* 打印到“stderr”字符串“Trace:”，后跟{@link util.format()}格式化消息和堆栈跟踪到代码中的当前位置
*/
trace(message?: any, ...optionalParams: any[]): void;
/**
* The {@link console.warn()} function is an alias for {@link console.error()}.
* 打印信息前有黄色的感叹号
*/
warn(message?: any, ...optionalParams: any[]): void;
// --- Inspector mode only ---
/**
* This method does not display anything unless used in the inspector.
* Starts a JavaScript CPU profile with an optional label.
* 此方法不显示任何内容，除非在检查器中使用。
* 使用可选标签启动JavaScript CPU配置文件
*/
profile(label?: string): void;
/**
* This method does not display anything unless used in the inspector.
* Stops the current JavaScript CPU profiling session if one has been started and prints the report to the Profiles panel of the inspector.
* 停止当前JavaScript CPU分析会话（如果已经启动），并将报告打印到检查器的Profiles面板。
*/
profileEnd(label?: string): void;
/**
* This method does not display anything unless used in the inspector.
* Adds an event with the label `label` to the Timeline panel of the inspector.
* 此方法不显示任何内容，除非在检查器中使用。
* 将标签为“label”的事件添加到检查器的“时间轴”面板中。
*/
timeStamp(label?: string): void;
}
var console: Console;
namespace NodeJS {
interface ConsoleConstructorOptions {
stdout: WritableStream;
stderr?: WritableStream;
ignoreErrors?: boolean;
colorMode?: boolean | 'auto';
inspectOptions?: InspectOptions;
}
interface ConsoleConstructor {
prototype: Console;
new(stdout: WritableStream, stderr?: WritableStream, ignoreErrors?: boolean): Console;
new(options: ConsoleConstructorOptions): Console;
}
interface Global {
console: typeof console;
}
}
}
export = console;
}
