"创建FileStream 对象以打开一个文件时，为了将该FileStream 限定为只读，应在构造 FileStream 对象时将（）参数设置为Read"AFileModeBFileAccessCFileShareDSeekOrigin
"创建FileStream 对象以打开一个文件时，为了将该FileStream 限定为只读，应在构造 FileStream 对象时将（）参数设置为Read"
AFileMode
BFileAccess
CFileShare
DSeekOrigin
参考解析
略
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