windows bat - ECHO 在 txt 文件中关闭
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bat - ECHO is off in the txt files
提问by david
:obje7
set gn=%random%
if /i %gn% lss 1 goto obje%go%
if /i %gn% gtr 5 goto obje%go%
set goal%gn%="test"
echo hi > goal%go%.txt
echo hi > g2.txt
goto go
that sets test in goal%random_number%, right?
在目标%random_number% 中设置测试，对吗？
(
echo %goal1%
echo %goal2%
echo %goal3%
echo %goal4%
echo %goal5%
) >> mcbingo.txt
and the result i get is:
我得到的结果是：
ECHO is off.
test
ECHO is off.
test
test
and all the :objeX are the same code, but changed X and the g2.txt is g1.txt for example.
并且所有的 :objeX 都是相同的代码，但更改了 X 并且 g2.txt 是 g1.txt 例如。
anyone have any idea whats wrong?
任何人都知道什么是错的？
回答by Andriy M
Some of your goalvariables remain uninitialised. When you are outputting them, the uninitialised variables evaluate to empty strings, and the corresponding echocommands simply look like this:
您的某些goal变量仍未初始化。当你输出它们时，未初始化的变量评估为空字符串，相应的echo命令看起来像这样：
echo
Without parameters, echodisplays the status of echoing batch commands to the console (when ON, they are displayed, when OFF, which is more typical in batches, they aren't).
不带参数，echo将批处理命令的回显状态显示到控制台（当 时ON，显示它们，当 时OFF，在批处理中更典型，它们不显示）。
To avoid this behaviour and display empty strings instead, add delimiters between echos and %goal…%s. There's a number of delimiters you can use in that position, but, as follows from this answer, (seems most appropriate:
为避免此行为并改为显示空字符串，请在echos 和s之间添加分隔符。您可以在该位置使用许多定界符，但是，如下来自此答案，似乎最合适：%goal…%(
(
echo(%goal1%
echo(%goal2%
echo(%goal3%
echo(%goal4%
echo(%goal5%
) >> mcbingo.txt
