批次有星号的循环 [英] Batch FOR loop with asterisk

问题描述

我有这样一行CMD文件TEST.CMD：

I have this single line CMD file TEST.CMD:

for %%f in (%1 %2 %3 %4 %5 %6 %7 %8) DO ECHO %%f

如果我运行此：

TEST this is a test

它正确回声在单独的行，即每个参数。

it correctly echos each parameter on a separate line, i.e.,

this
is
a
test

但是，如果一个参数包含星号它跳过它。如，

However if a parameter contains asterisk it skips it. E.g.,

TEST this is a* test

结果：

this
is
test

我如何获取参数用星号像一个正常的令牌可以治疗吗？

How do I get the parameter with an asterisk to be treated like a normal token?

感谢。

推荐答案

这对于大多数参数的工作原理是将参数传输给一个变量阵列，然后通过该阵列使用FOR / L至循环的最简单的方法。这是最好的延迟扩展来实现的。

The simplest method that works for most parameters is to transfer the parameters to an "array" of variables, and then use FOR /L to loop through the array. This is best achieved with delayed expansion.

此技术可以处理的参数的任意数目 - 它并不限于9

This technique can process an arbitrary number of parameters - it is not limited to 9.

@echo off
setlocal

:: Transfer parameters to an "array"
set arg.cnt=1
:getArgs
(set arg.%arg.cnt%=%1)
if defined arg.%arg.cnt% (
  set /a arg.cnt+=1
  shift /1
  goto :getArgs
)
set /a arg.cnt-=1

:: Process the "array"
setlocal enableDelayedExpansion
for /l %%N in (1 1 %arg.cnt%) do echo arg %%N = !arg.%%N!

这篇关于批次有星号的循环的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！