<分区>
我想用 C# 比较两个文件,看看它们是否不同。它们具有相同的文件名,不同时它们的大小完全相同。我只是想知道是否有一种快速的方法可以做到这一点而无需手动进入并读取文件。
谢谢
<分区>
我想用 C# 比较两个文件,看看它们是否不同。它们具有相同的文件名,不同时它们的大小完全相同。我只是想知道是否有一种快速的方法可以做到这一点而无需手动进入并读取文件。
谢谢
最佳答案
根据您希望走多远,您可以查看 Diff.NET
这是一个简单的文件比较函数:
// This method accepts two strings the represent two files to
// compare. A return value of 0 indicates that the contents of the files
// are the same. A return value of any other value indicates that the
// files are not the same.
private bool FileCompare(string file1, string file2)
{
int file1byte;
int file2byte;
FileStream fs1;
FileStream fs2;
// Determine if the same file was referenced two times.
if (file1 == file2)
{
// Return true to indicate that the files are the same.
return true;
}
// Open the two files.
fs1 = new FileStream(file1, FileMode.Open, FileAccess.Read);
fs2 = new FileStream(file2, FileMode.Open, FileAccess.Read);
// Check the file sizes. If they are not the same, the files
// are not the same.
if (fs1.Length != fs2.Length)
{
// Close the file
fs1.Close();
fs2.Close();
// Return false to indicate files are different
return false;
}
// Read and compare a byte from each file until either a
// non-matching set of bytes is found or until the end of
// file1 is reached.
do
{
// Read one byte from each file.
file1byte = fs1.ReadByte();
file2byte = fs2.ReadByte();
}
while ((file1byte == file2byte) && (file1byte != -1));
// Close the files.
fs1.Close();
fs2.Close();
// Return the success of the comparison. "file1byte" is
// equal to "file2byte" at this point only if the files are
// the same.
return ((file1byte - file2byte) == 0);
}
关于c# - C#比较两个文件,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/7931304/