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[close]
description = '关闭 `file`。'
[flush]
description = '将写入的数据保存到 `file` 中。'
[lines]
description = [[
------
```lua
for c in file:lines(...) do
body
end
```
]]
[[.enums]]
name = 'mode'
enum = '"n"'
description = '读取一个数字，根据 Lua 的转换文法返回浮点数或整数。'
``````````
name = 'mode'
enum = '"a"'
description = '从当前位置开始读取整个文件。'
``````````
name = 'mode'
enum = '"l"'
description = '读取一行并忽略行结束标记。'
``````````
name = 'mode'
enum = '"L"'
description = '读取一行并保留行结束标记。'
``````````
name = 'mode'
code = 'number'
description = '读取一个不超过这个数量字节数的字符串。'
[read]
description = '读文件 `file`， 指定的格式决定了要读什么。'
[[.enums]]
name = 'mode'
enum = '"n"'
description = '读取一个数字，根据 Lua 的转换文法返回浮点数或整数。'
``````````
name = 'mode'
enum = '"a"'
description = '从当前位置开始读取整个文件。'
``````````
name = 'mode'
enum = '"l"'
description = '读取一行并忽略行结束标记。'
``````````
name = 'mode'
enum = '"L"'
description = '读取一行并保留行结束标记。'
``````````
name = 'mode'
code = 'number'
description = '读取一个不超过这个数量字节数的字符串。'
[seek]
description = '设置及获取基于文件开头处计算出的位置。'
[[.enums]]
name = 'whence'
enum = '"set"'
description = '基点为 0 （文件开头）。'
``````````
name = 'whence'
enum = '"cur"'
description = '基点为当前位置。'
``````````
name = 'whence'
enum = '"end"'
description = '基点为文件尾。'
[setvbuf]
description = '设置输出文件的缓冲模式。'
[[.enums]]
name = 'mode'
enum = '"no"'
description = '不缓冲；输出操作立刻生效。'
``````````
name = 'mode'
enum = '"full"'
description = '完全缓冲；只有在缓存满或调用 flush 时才做输出操作。'
``````````
name = 'mode'
enum = '"line"'
description = '行缓冲；输出将缓冲到每次换行前。'
[write]
description = '将参数的值逐个写入 `file`。'
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