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This article mainly shows you "how to calculate the length of a string in batches". The content is easy to understand and clear. I hope it can help you solve your doubts. Let me lead you to study and learn the article "how to calculate the length of a string in batches".

The code is as follows:

@ echo off & setlocal EnableDelayedExpansion

:: calculate the length of the string

::

::

: began

Set mystr=

Set / p mystr= enter the string to calculate the length (directly enter exit):

If not defined mystr goto: eof

For / l% I in do if "! mystr:~%%i,1!" = "" set strlen=%%i & & goto: _ endfor

: _ endfor

:: echo string: "% mystr%"

Echo length:% strlen%

Set strlen=

Goto began

The disadvantage of this scheme is that when the length of the string exceeds 1000, it cannot be detected, but the length that the variable can receive does not seem to exceed 1000.

Another option:

The code is as follows:

@ echo off

:: Based on willsort's codes code by JM 2006-10-9 CMD@XP

:: source: http://www.cn-dos.net/forum/viewthread.php?tid=19819

Set mystr=

Set / p mystr= enter the string to calculate the length (directly enter exit):

If not defined mystr goto: eof

Set count=0

Setlocal enabledelayedexpansion

: intercept

Set / a count+=1

For / f% I in ("% count%") do if not "! mystr:~%%i,1!" = "" goto intercept

Echo length:% count%

Pause

Goto: eof

@ echo off

::

::

: began

Set / p mystr= enter the string for which you want to calculate the length:

Echo% mystr:~0,1% | findstr / I "Q" 1 > nul 2 > nul & & exit rem enter Q to exit

Call: bflen "% mystr%" rem these two sentences call bflen, returning the length to the variable ret.

Echo string: "% mystr%"

Echo length:% ret%

Goto began

Bflen rem is really troublesome. Initialization should be taken out separately.

Set num=

Set str=

Set ret=

Set str=%1

Len rem calculates string length

Set str=%str:~0,-1%

Set / a num =% num% + 1

If defined str goto len

Set / a ret =% num%-2

Set num=

Goto: eof

The above is all the contents of the article "how to calculate the length of a string in batches". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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