IF语句不支持逻辑运算符AND和OR。 级联IF语句构成隐式连词:

IF Exist File1.Dat IF Exist File2.Dat GOTO FILE12_EXIST_LABEL

如果存在File1.Dat和File2.Dat，则跳转到标签FILE12_EXIST_LABEL。

参见:IF /?

IF语句不支持逻辑运算符AND和OR。 级联IF语句构成隐式连词:

IF Exist File1.Dat IF Exist File2.Dat GOTO FILE12_EXIST_LABEL

如果存在File1.Dat和File2.Dat，则跳转到标签FILE12_EXIST_LABEL。

参见:IF /?

下面的例子展示了如何创建AND语句(用于为命令设置变量或包含参数)。

启动记事本并关闭CMD窗口:

start notepad.exe & exit

如果变量'a' = blah，则设置变量x、y和z的值。

IF "%a%"=="blah" (set x=1) & (set y=2) & (set z=3)

希望有帮助!

对Andry的回答进行了轻微修改，减少了重复的类型命令:

set "A=1" & set "B=2" & call :IF_AND
set "A=1" & set "B=3" & call :IF_AND
set "A=2" & set "B=2" & call :IF_AND
set "A=2" & set "B=3" & call :IF_AND

echo.

set "A=1" & set "B=2" & call :IF_OR
set "A=1" & set "B=3" & call :IF_OR
set "A=2" & set "B=2" & call :IF_OR
set "A=2" & set "B=3" & call :IF_OR

goto :eof

:IF_OR

(if /i not %A% EQU 1 (
   if /i not %B% EQU 2 (
      echo FALSE-
      type 2>nul
   )
)) && echo TRUE+

goto :eof

:IF_AND


(if /i %A% EQU 1 (
   if /i %B% EQU 2 (
      echo TRUE+
      type 2>nul
   )
)) && echo FALSE-

goto :eof

许多人似乎忽略了OR最明显的解决方案，即使用标签。

if "%a%" == "ONE" goto do_thing
if "%a%" == "TWO" (
   :do_thing
   echo a is equal to ONE or TWO
)

你可以用嵌套条件做和:

if %age% geq 2 (
    if %age% leq 12 (
        set class=child
    )
)

or:

if %age% geq 2 if %age% leq 12 set class=child

你可以用一个单独的变量:

set res=F
if %hour% leq 6 set res=T
if %hour% geq 22 set res=T
if "%res%"=="T" (
    set state=asleep
)

注意，这个答案是针对cmd批处理语言定制的，在Windows中可以找到。你提到了“DOS批处理”，但是，基于几点，我认为前者的选择是一个安全的赌注(1)。

如果你真的是指原始的MS-DOS批处理语言，你应该记住If语句要简单得多，你可能需要使用If语句的块…Goto表示控制流，而不是(例如)括号或其他。

(1)以下几点支持:

The presence of the cmd and windows-console tags; Prior experience of some people failing to recognise the very real difference between cmd and MS-DOS batch languages, and conflating DOC with the cmd terminal window; The question using the more generic "DOS" rather than specifically "MS-DOS" (where "DOS" could possibly be any disk operating system; The fact this is Stack Overflow rather than the retro-computing sister site, where a question about MS-DOS would be way more appropriate (I'm often on that site as well, it's nice for those of us who remember and appreciate computer history); and The (eventual) acceptance of the answer by the original asker, indicating that the solution worked.