我能听懂cmd,但不懂cmd /c。我试图从当前调用一个java程序,我使用Runtime.getRuntime()。exec(cmd /C java helloworld);这引起了我的怀疑。
CMD.exe
Start a new CMD shell
Syntax
CMD [charset] [options] [My_Command]
Options
**/C Carries out My_Command and then
terminates**
从帮助。
你应该感兴趣的部分是/?部分,这应该可以解决您使用该工具遇到的大多数其他问题。
Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1985-2001 Microsoft Corp. C:\>cmd /? Starts a new instance of the Windows XP command interpreter CMD [/A | /U] [/Q] [/D] [/E:ON | /E:OFF] [/F:ON | /F:OFF] [/V:ON | /V:OFF] [[/S] [/C | /K] string] /C Carries out the command specified by string and then terminates /K Carries out the command specified by string but remains /S Modifies the treatment of string after /C or /K (see below) /Q Turns echo off /D Disable execution of AutoRun commands from registry (see below) /A Causes the output of internal commands to a pipe or file to be ANSI /U Causes the output of internal commands to a pipe or file to be Unicode /T:fg Sets the foreground/background colors (see COLOR /? for more info) /E:ON Enable command extensions (see below) /E:OFF Disable command extensions (see below) /F:ON Enable file and directory name completion characters (see below) /F:OFF Disable file and directory name completion characters (see below) /V:ON Enable delayed environment variable expansion using ! as the delimiter. For example, /V:ON would allow !var! to expand the variable var at execution time. The var syntax expands variables at input time, which is quite a different thing when inside of a FOR loop. /V:OFF Disable delayed environment expansion.
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