fs.open(path[, flags[, mode]], callback)
-
flags
<string> | <number> 参见 支持文件系统flags
。默认值:'r'
。¥
flags
<string> | <number> See support of file systemflags
. Default:'r'
. -
mode
<string> | <integer> 默认值:0o666
(可读可写)¥
mode
<string> | <integer> Default:0o666
(readable and writable) -
callback
<Function>
异步地打开文件。有关更多详细信息,请参阅 POSIX open(2)
文档。
¥Asynchronous file open. See the POSIX open(2)
documentation for more details.
mode
设置文件模式(权限和粘滞位),但前提是文件已创建。在 Windows 上,只能操作写权限;见 fs.chmod()
。
¥mode
sets the file mode (permission and sticky bits), but only if the file was
created. On Windows, only the write permission can be manipulated; see
fs.chmod()
.
回调有两个参数 (err, fd)
。
¥The callback gets two arguments (err, fd)
.
如 命名文件、路径、以及命名空间 所述,某些字符 (< > : " / \ | ? *
) 在 Windows 下是保留的。在 NTFS 下,如果文件名包含冒号,Node.js 将打开文件系统流,如 这个 MSDN 页面 所述。
¥Some characters (< > : " / \ | ? *
) are reserved under Windows as documented
by Naming Files, Paths, and Namespaces. Under NTFS, if the filename contains
a colon, Node.js will open a file system stream, as described by
this MSDN page.
基于 fs.open()
的函数也表现出这种行为:fs.writeFile()
、fs.readFile()
等
¥Functions based on fs.open()
exhibit this behavior as well:
fs.writeFile()
, fs.readFile()
, etc.