如何在func中将多维数组作为ref参数传递 [英] How can I pass a multidimensional array as a ref parameter in func
问题描述
这是一个代码示例...
int blah = ReadFile（defArray [，]，defFileName，w，h）;
//将文件内容读入内存数组并返回进行处理
public int ReadFile（ref ushort [，] nArray，string sFname，int w，int h）
{
FileStream fs = new FileStream（sFname，FileMode.Open，FileAccess.Read）;
BinaryReader br = new BinaryReader（fs）;
//读取数据
for（int y = 0; y< h; y ++）
{
for（int x = 0; x< w; x ++）
{
nArray [x，y] = br.ReadUInt16（）;
}
}
br.Close（）;
fs.Close（）;
返回0;
}
任何人都可以帮忙让这个工作并编译???
THX greg
Here is a code sample ...
int blah = ReadFile( defArray[,], defFileName, w, h);
// Read File Contents into memory array and return for processing
public int ReadFile( ref ushort[,] nArray, string sFname, int w, int h)
{
FileStream fs = new FileStream(sFname, FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader(fs);
// Read data
for (int y=0; y<h; y++)
{
for (int x=0; x<w; x++)
{
nArray[x,y] = br.ReadUInt16();
}
}
br.Close();
fs.Close();
return 0;
}
Can anyone help get this to work and compile ???
THX greg
推荐答案
vmsgman< vm ***** @ discussion.microsoft.com>写道：
vmsgman <vm*****@discussions.microsoft.com> wrote:
这是一个代码示例...
int blah = ReadFile（defArray [，]，defFileName，w，h）;
//将文件内容读入内存数组并返回进行处理
public int ReadFile（ref ushort [，] nArray，string sFname，int w，int h）
{
FileStream fs = new FileStream（sFname，FileMode.Open，FileAccess.Read）;
BinaryReader br = new BinaryReader（fs）;
//读取数据
（int y = 0; y< h; y ++ ）
{
for（int x = 0; x< w; x ++）
{
nArray [x，y] = br.ReadUInt16（）;
}
}
br.Close（）;
fs.Close（）;
返回0;
}
任何人都可以帮忙得到这个工作和编译???
Here is a code sample ...
int blah = ReadFile( defArray[,], defFileName, w, h);
// Read File Contents into memory array and return for processing
public int ReadFile( ref ushort[,] nArray, string sFname, int w, int h)
{
FileStream fs = new FileStream(sFname, FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader(fs);
// Read data
for (int y=0; y<h; y++)
{
for (int x=0; x<w; x++)
{
nArray[x,y] = br.ReadUInt16();
}
}
br.Close();
fs.Close();
return 0;
}
Can anyone help get this to work and compile ???
您通过引用传递数组的方式与通过引用传递
其他任何方式完全相同：
int blah = ReadFile（ref defArray，defFileName，w，h）;
然而，在我看来它更合适作为一个返回
上面的
值 - 这是读取文件的结果，目前
你只是返回0。如果这意味着作为状态代码，您需要考虑使用异常来指示错误。
您还应该使用使用块（或它们的等价物，尝试/终于
块）以确保文件被关闭，无论是否抛出异常
。
-
Jon Skeet - < sk *** @ pobox.com>
http://www.pobox.com/~skeet
如果回复该群组，请不要给我发邮件
You pass arrays by reference in exactly the same way as you pass
anything else by reference:
int blah = ReadFile (ref defArray, defFileName, w, h);
However, it seems to me that it would be more appropriate as a return
value in the above - it''s the result of reading the file, and currently
you''re just returning 0. If that''s meant to be a status code, you
should consider using exceptions for indicating errors.
You should also use "using" blocks (or their equivalent, try/finally
blocks) to make sure that files get closed whether or not an exception
is thrown.
--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
vmsgman< vm ***** @ discussion.microsoft.com>写道：
vmsgman <vm*****@discussions.microsoft.com> wrote:
这是一个代码示例...
int blah = ReadFile（defArray [，]，defFileName，w，h）;
//将文件内容读入内存数组并返回进行处理
public int ReadFile（ref ushort [，] nArray，string sFname，int w，int h）
{
FileStream fs = new FileStream（sFname，FileMode.Open，FileAccess.Read）;
BinaryReader br = new BinaryReader（fs）;
//读取数据
（int y = 0; y< h; y ++ ）
{
for（int x = 0; x< w; x ++）
{
nArray [x，y] = br.ReadUInt16（）;
}
}
br.Close（）;
fs.Close（）;
返回0;
}
任何人都可以帮忙得到这个工作和编译???
Here is a code sample ...
int blah = ReadFile( defArray[,], defFileName, w, h);
// Read File Contents into memory array and return for processing
public int ReadFile( ref ushort[,] nArray, string sFname, int w, int h)
{
FileStream fs = new FileStream(sFname, FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader(fs);
// Read data
for (int y=0; y<h; y++)
{
for (int x=0; x<w; x++)
{
nArray[x,y] = br.ReadUInt16();
}
}
br.Close();
fs.Close();
return 0;
}
Can anyone help get this to work and compile ???
您通过引用传递数组的方式与通过引用传递
其他任何方式完全相同：
int blah = ReadFile（ref defArray，defFileName，w，h）;
然而，在我看来它更合适作为一个返回
上面的
值 - 这是读取文件的结果，目前
你只是返回0。如果这意味着作为状态代码，您需要考虑使用异常来指示错误。
您还应该使用使用块（或它们的等价物，尝试/终于
块）以确保文件被关闭，无论是否抛出异常
。
-
Jon Skeet - < sk *** @ pobox.com>
http://www.pobox.com/~skeet
如果回复该群组，请不要给我发邮件
You pass arrays by reference in exactly the same way as you pass
anything else by reference:
int blah = ReadFile (ref defArray, defFileName, w, h);
However, it seems to me that it would be more appropriate as a return
value in the above - it''s the result of reading the file, and currently
you''re just returning 0. If that''s meant to be a status code, you
should consider using exceptions for indicating errors.
You should also use "using" blocks (or their equivalent, try/finally
blocks) to make sure that files get closed whether or not an exception
is thrown.
--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
int blah = ReadFile（ref defArray，defFileName，w，h）;
作为旁注，为什么要使defArray
输入参数ref。有没有理由你
不要让ReadFile返回字节[]？
然后，在byte []上检查null是否成功。
-
2004和2005 Microsoft MVP C＃
Robbe Morris
http://www.masterado.net
赚取
int blah = ReadFile( ref defArray, defFileName, w, h);
As a side note, why would you make defArray
an input parameter by "ref". Is there a reason you
don''t make ReadFile return the byte[]?
Then, check for null on the byte[] for success.
--
2004 and 2005 Microsoft MVP C#
Robbe Morris
http://www.masterado.net
Earn
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