docs: Add node-process-nexttick.zh-cn.md (#3219)

* Create node-process-nexttick.zh-cn.md

feat:  add Chinese translation of Understanding process.nextTick() documentation

https://nodejs.dev/zh-cn/learn/understanding-processnexttick/

Signed-off-by: xgqfrms <xgqfrms@outlook.com>

* Update node-process-nexttick.zh-cn.md

Signed-off-by: Willin 王初瘦 <willin@willin.org>

---------

Signed-off-by: xgqfrms <xgqfrms@outlook.com>
Signed-off-by: Willin 王初瘦 <willin@willin.org>
Co-authored-by: Willin 王初瘦 <willin@willin.org>

Author: xgqfrms

content/learn/asynchronous-work/node-process-nexttick.zh-cn.md

@@ -0,0 +1,52 @@
+---
+title: understanding-processnexttick
+displayTitle: '理解 process.nextTick()'
+description: 'Node.js 中的 process.nextTick 函数以一种特殊的方式与事件循环交互'
+authors: xgqfrms, flaviocopes, MylesBorins, LaRuaNa, ahmadawais, ovflowd, marksist300
+category: learn
+---
+
+当你尝试理解 Node.js 事件循环时，其中一个重要部分是 `process.nextTick()`。每次事件循环完成一次完整的行程，我们称之为一个滴答(`tick`)。
+
+当我们将一个函数传递给 `process.nextTick()` 时，我们指示引擎在当前操作结束时调用此函数，在下一个事件循环滴答开始之前:
+
+```js
+process.nextTick(() => {
+  // do something
+});
+```
+
+事件循环正忙于处理当前函数代码。当此操作结束时，JS 引擎运行在该操作期间传递给 `nextTick` 调用的所有函数。
+
+这是我们可以告诉 JS 引擎异步地处理函数的方式（在当前函数之后），但要尽快，而不是将其排队。
+
+调用 `setTimeout(() => {}, 0)` 将在下一个滴答结束时执行该函数，比使用 `nextTick()` 时要晚得多，它会优先调用并在下一个滴答开始之前执行它。
+
+当你想确保在下一次事件循环迭代中该代码已被执行时，请使用 `nextTick()`。
+
+#### 一个事件顺序的示例
+
+```js
+console.log("Hello => number 1");
+
+setTimeout(() => {
+  console.log("The timeout running last => number 4");
+}, 0);
+
+setImmediate(() => {
+  console.log("Running before the timeout => number 3");
+});
+
+process.nextTick(() => {
+  console.log("Running at next tick => number 2");
+});
+```
+
+#### 输出
+
+```bash
+Hello => number 1
+Running at next tick => number 2
+The timeout running last => number 4
+Running before the timeout => number 3
+```