batch-file - 批处理脚本 - 从文件中读取行时忽略哈希

Question

我想根据属性中的名称值对设置变量。属性文件有 # 用于注释

====示例输入文件=====

#This is a comment
### Another comment
appNames=HelloWorldApp
targetServer=serverABC

DEV.key1=value1
TEST.key2=value2

========= 我有两个问题

1)

C:\temp\dos>for /f "delims=" %i in (test.properties) do @set %i
Environment variable #This is a not defined
Environment variable ### Another not defined

变量已设置，但我希望忽略注释。我想用一行代码来做到这一点，但得到这个。

for /f "delims=" %i in (test.properties) do @echo %i | find "#">nul || @set %i
find: unable to access "#": The system cannot find the file specified.
The process tried to write to a nonexistent pipe.
Environment variable #This is a not defined
find: unable to access "#": The system cannot find the file specified.
The process tried to write to a nonexistent pipe.

2) 我希望将此属性文件作为参数传递给批处理脚本。test.bat 文件的内容

set propFilePathAndName=%1
for /f "delims=" %i in (%propFilePathAndName%) do echo %i

输出

C:\temp\dos>set propFilePathAndName=/temp/dos/test.properties
propFilePathAndNamei was unexpected at this time.    

如果我一次一行地运行这个文件的内容，它就可以工作。 我究竟做错了什么？ 提前致谢

Answer 1

要忽略以散列开头的行，您可以使用 for 循环的 eol 参数。
for/f "eol=# delims="%i in (test.properties) do @set %i

第二个问题是将批处理文件中的百分比加倍。

set propFilePathAndName=%1
for /f "delims=" %%i in (%propFilePathAndName%) do echo %%i

这是由解析器引起的，命令行和批处理文件有不同的规则。

命令行
for %a in (xyz) do echo %a

批处理文件
for %%a in (xyz) do echo %%a