docs(tutorial): update vim script guide

docs/cn/development/vim-script.md

@@ -0,0 +1,111 @@
+---
+title: "Vim 脚本指南"
+description: "Vim 脚本入门指南，语法及基本使用。"
+lang: zh
+---
+
+# [开发者文档](../) >> Vim 脚本指南
+
+
+## 简介
+
+Vim 脚本是 Vim/Neovim 编辑器内置的脚本语言。可以用于配置 Vim/Neovim 及开发插件。
+
+## 语法
+
+### 基本语法
+
+### 注释
+
+Vim 脚本注释都是以 双引号开头，比如：
+
+```vim
+" 这是一个单行注释
+
+let g:foo = 1 " 这是一个行尾注释。
+```
+
+## 变量
+
+变量是一个存储数据的容器，在 vim 脚本内，一个变量由作用域前缀和变量名称组成，比如：
+
+```vim
+let g:foo = 'hello world'
+```
+
+其中，`g:foo` 就是一个变量，`g:` 就是一个作用域标识。`foo` 是这个变量的名称。
+
+### Variable Scope
+
+In vim script, there are 6 kinds of variable scopes:
+
+1. `g:` global variable scope
+2. `s:` local to script
+3. `l:` local to function, it can be prepended.
+4. `w:` local to window
+5. `t:` local to tab
+6. `b:` local to buffer
+
+## Data Types
+
+## Operators
+
+## Loop
+
+Often when you write vim script, you want the same code block to run over and over again.
+Instead of adding several almost equal lines in the script, we can use loops.
+
+In vim script there are two kinds of lools, `for loop` and `while loop`.
+
+### for loop
+
+
+To execute a block of code a specified number of times, you need to use for loop.
+here is an example of for loop in vim script:
+
+```vim
+for n in range(10)
+    echo n
+endfor
+```
+
+### while loop
+
+While loops execute a block of code while the specified condition is true.
+
+
+## Functions
+
+Vim provides many built-in functions, besides the built-in functions,
+we can also create our own functions.
+
+```vim
+function! TestHello() abort
+    echo "hello world"
+endfunction
+```
+
+use `:call TestHello()` to run a function.
+
+### return statement
+
+Within a function, we can use return statement to return a variable.
+if the return statement is prepended. `0` is returned.
+
+```vim
+function! Test() abort
+    return 'hello'
+endfunction
+
+echo Test()
+
+" hello
+
+function! Test() abort
+    
+endfunction
+
+echo Test()
+
+" 0
+```

docs/development/vim-script.md

@@ -1,4 +1,9 @@
-# Vim Script Guide
+---
+title: "Vim Script Guide"
+description: "general guide about vim script"
+---
+
+# [Development](../) >> Vim Script Guide
 
 
 <!-- vim-markdown-toc GFM -->