如何使用批处理查看字符串是否包含子字符串 [英] How to see if a string contains a substring using batch

问题描述

当前试图查看字符串(在本例中为文本文件的当前行)是否包含子字符串#.我是新手，所以我不确定我将如何做这样的事情.这是代码 set substring =#

Currently trying to see if a string, in this case the current line of a text file, contains a substring #. I am new to batch, so I am not sure exactly how I would do something like this. Here is the code set substring = #

for /f "delims=," %%a in (Text.txt) do (
    set string = %%a

    //check substring method        

    echo %string%

)

推荐答案

echo %%a|find "substring" >nul
if errorlevel 1 (echo notfound) else (echo found)

批处理对 SET 语句中的空格敏感. SET FLAG = N 将名为"FLAG Space "的变量设置为" Space N"

Batch is sensitive to spaces in a SET statement. SET FLAG = N sets a variable named "FLAGSpace" to a value of "SpaceN"

语法 SET"var = value" (值可能为空)用于确保分配的值中不包含任何杂散尾随空格. set/a 可以安全地无引号"使用.

The syntax SET "var=value" (where value may be empty) is used to ensure that any stray trailing spaces are NOT included in the value assigned. set /a can safely be used "quoteless".

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