经编辑,移除了意见
无论Windows CMD.EXE是否应该支持路径中的正斜杠,事实上有时它能正常工作,有时不行,有时看起来可以工作但会给出错误结果,也就是说这是一个 bug。
现在是进行一些实验的时候啦 :-)
所有测试均在 Vista 上运行。
C:\>md "c:/temp/"
C:\>REM The forward slash works with MD!
C:\>echo hello world 1>>"c:/temp/test.txt"
C:\>REM Redirection works with forward slashes!
C:\>type "c:\temp\test.txt"
hello world
C:\>REM Of course TYPE works with back slashes
C:\>type "c:/temp/test.txt"
The system cannot find the file specified.
C:\>REM But forward slash version fails
C:\>type "c:/temp\test.txt"
hello world
C:\>REM But TYPE works with forward slash as long as last slash is back slash
C:\>dir "c:/temp/test.txt"
Volume in drive C is OS
Volume Serial Number is EE2C-5A11
Directory of c:\temp
File Not Found
C:\>REM Note how DIR lists the directory with a \, yet fails to find any files
C:\>dir "c:/temp/*"
Volume in drive C is OS
Volume Serial Number is EE2C-5A11
Directory of c:\temp
File Not Found
C:\>REM DIR Still fails with forward slashes
C:\>dir "c:/temp/"
Volume in drive C is OS
Volume Serial Number is EE2C-5A11
Directory of c:\temp
05/09/2012 09:58 PM <DIR> .
05/09/2012 09:58 PM <DIR> ..
05/09/2012 09:58 PM 13 test.txt
1 File(s) 13 bytes
2 Dir(s) 337,001,615,360 bytes free
C:\>REM But forward slash works if no file is specified!
C:\>dir "c:/temp\test.txt"
Volume in drive C is OS
Volume Serial Number is EE2C-5A11
Directory of c:\temp
05/09/2012 09:58 PM 13 test.txt
1 File(s) 13 bytes
0 Dir(s) 337,001,615,360 bytes free
C:\>REM And DIR works with forward slash as long as last slash is back slash
C:\>REM Now add another folder to the path hierarchy
C:\>md "c:/temp/temp/"
C:\>REM Still can create folder using forward slashes
C:\>copy "c:/temp/test.txt" "c:/temp/temp/"
The system cannot find the file specified.
0 file(s) copied.
C:\>REM Failed to copy with forward slashes
C:\>copy "c:/temp\test.txt" "c:/temp/temp/"
1 file(s) copied.
C:\>REM But forward slash works if last slash before file name is back slash
C:\>REM Rerun some past tests
C:\>type "c:/temp/test.txt"
The system cannot find the file specified.
C:\>REM Good - it still fails
C:\>dir "c:/temp/test.txt"
Volume in drive C is OS
Volume Serial Number is EE2C-5A11
Directory of c:\temp
05/09/2012 09:58 PM 13 test.txt
1 File(s) 13 bytes
0 Dir(s) 337,001,615,360 bytes free
C:\>REM What is going on?! :( Why did that seem to work now?
C:\>REM More on that later.
C:\>REM Now test the new folder
C:\>type "c:/temp/temp/test.txt"
The system cannot find the file specified.
C:\>REM Forward slashes still fail with TYPE
C:\>type "c:/temp/temp\test.txt"
hello world
C:\>REM But forward slash still works as long as last slash is back slash
C:\>dir "c:/temp/temp/*"
Volume in drive C is OS
Volume Serial Number is EE2C-5A11
Directory of c:\temp\temp
File Not Found
C:\>REM Again, forward slashes fail, but directory path is listed properly
C:\>dir "c:/temp/temp/"
Volume in drive C is OS
Volume Serial Number is EE2C-5A11
Directory of c:\temp\temp
05/09/2012 09:58 PM <DIR> .
05/09/2012 09:58 PM <DIR> ..
05/09/2012 09:58 PM 13 test.txt
1 File(s) 13 bytes
2 Dir(s) 337,001,615,360 bytes free
C:\>REM And again it works if no file is specified
C:\>dir "c:/temp/temp\test.txt"
Volume in drive C is OS
Volume Serial Number is EE2C-5A11
Directory of c:\temp\temp
05/09/2012 09:58 PM 13 test.txt
1 File(s) 13 bytes
0 Dir(s) 337,001,615,360 bytes free
C:\>REM Again forward slashes work as long as last slash is back slash
这里有一个清楚地展示了一个 bug 的案例。
c:\>dir /s /a-d temp
Volume in drive C is OS
Volume Serial Number is EE2C-5A11
Directory of c:\temp
05/10/2012 08:01 AM 13 test.txt
1 File(s) 13 bytes
Directory of c:\temp\temp
05/10/2012 07:57 AM 10 test.txt
1 File(s) 10 bytes
Total Files Listed:
2 File(s) 23 bytes
0 Dir(s) 337,325,191,168 bytes free
c:\>REM Note the different file sizes found in each directory
c:\>dir "c:/temp/test.txt"
Volume in drive C is OS
Volume Serial Number is EE2C-5A11
Directory of c:\temp
05/10/2012 07:57 AM 10 test.txt
1 File(s) 10 bytes
0 Dir(s) 337,325,191,168 bytes free
c:\>REM It is listing the wrong file!
有人可能会争论Windows命令提示符是否“应该”支持正斜杠。但是最后的结果是错误的!即使在使用正斜杠时存在运算符错误,Windows也不应该给出该结果。
/
可以用作路径分隔符,但是您不是直接调用API。您正在使用cmd.exe,而cmd.exe将/
解析为命令行选项。 - Raymond ChenCD
在处理以/
分隔的路径时表现不一致。如果路径以/
开头,CD
会说找不到它(除非你尝试使用/D
,这种情况下它会抱怨语法错误)。 - Andriy M