DOS FOR循环通过命令行的范围

问题描述

我想从DOS窗口多次执行一个操作。常识告诉我一个DOS FOR循环应该能够处理这个。果然，如果我想要执行，比如说， myProg.exe ，我可以打开一个命令窗口并使用：

  C：\> （1 2 3）DO myProg.exe 
  

简单。

但是如果我想执行 myProg.exe 1000次呢？我想在FOR循环中指定一个范围，但是我很难看到怎么做。

如下所示：

  C：\> FOR％i in（1 to 1000）DO myProg.exe 
 C：\> FOR％i（1-1000）DO myProg.exe 
  

但是，工作。 FOR循环分别将列表解释为3个标记和1个标记，因此 myProg.exe 只分别执行3次和1次。

批处理文件解决方案

编写某种批处理（.bat）文件：

pre $ SET $ COUNT = 0
MyLoop
IF％COUNT％==1000GOTO EndLoop
myProg.exe
SET / A COUNT + = 1
GOTO MyLoop
：EndLoop


$ b

但是有没有简单的方法从命令行执行此操作？

例如。

 C：\> FOR / l％i in（1,1,1000）DO myProg.exe 

这就是循环遍历范围，从1开始，每次步进1，直到1000

$ b

I want to perform an operation multiple times from a DOS window. Common sense tells me that a DOS FOR loop should be able to handle this. Sure enough, if I want to execute, say, myProg.exe, I can open a command window and use:

C:\> FOR %i in (1 2 3) DO myProg.exe

Easy.

But what if I want to execute myProg.exe 1000 times? I want to specify a range in the FOR loop, but I'm having trouble seeing how to do this.

Intuitively, it seems like I should be able to do something like one of the following:

C:\> FOR %i in (1 to 1000) DO myProg.exe
C:\> FOR %i in (1-1000) DO myProg.exe

But, of course, this doesn't work. The FOR loop interprets the list as 3 tokens and 1 token, respectively, so myProg.exe is only executed 3 times and 1 time, respectively.

---

Batch File Solution

It'd probably be easy to write some sort of batch (.bat) file:

SET COUNT=0
:MyLoop
    IF "%COUNT%" == "1000" GOTO EndLoop
    myProg.exe
    SET /A COUNT+=1
    GOTO MyLoop
:EndLoop

But isn't there an easy way to do this from the command line?

解决方案

You can use the /l tag in your statement to make it loop through a set of numbers.

eg.

C:\> FOR /l %i in (1,1,1000) DO myProg.exe

This says loop through the range, starting at 1, stepping 1 at a time, until 1000

http://ss64.com/nt/for_l.html

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