std::ios_base::openmode

 

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std::ios_base

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ios_base::openmode

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ios_base::seekdir

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typedef /*implementation defined*/ openmode;
static constexpr openmode app = /*implementation defined*/ static constexpr openmode binary = /*implementation defined*/ static constexpr openmode in = /*implementation defined*/ static constexpr openmode out = /*implementation defined*/ static constexpr openmode trunc = /*implementation defined*/ static constexpr openmode ate = /*implementation defined*/

指定提供文件开放的标志。这是一个BitmaskType，下面的常量定义

Original:

Specifies available file open flags. It is a BitmaskType, the following constants are defined:

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常数 Original: Constant The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Explanation
app	寻求每次写操作之前的数据流结束 Original: seek to the end of stream before each write The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
binary	打开二进制模式 Original: open in binary mode The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
in	打开阅读 Original: open for reading The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
out	打开写作 Original: open for writing The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
trunc	丢弃打开时的流的内容 Original: discard the contents of the stream when opening The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ate	寻求到的数据流结束后，立即打开 Original: seek to the end of stream immediately after open The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.