Batch file 如何在批处理中组合变量和文本字符串？ @echo关闭 set/a hlo=Hello ：开始 回显%hlo% 暂停 设置/a hlo=%hlo%+世界 开始 暂停

我想把

hlo

变成“HelloWorld”。

只需删除

/a

set "hlo=Hello"
set "hlo=%hlo% World"

因为

set/a

用于算术运算，而不是字符串运算

set /?
...
Two new switches have been added to the SET command:

    SET /A expression
    SET /P variable=[promptString]

The /A switch specifies that the string to the right of the equal sign
is a numerical expression that is evaluated.  The expression evaluator
is pretty simple and supports the following operations, in decreasing
order of precedence:
...

谢谢！（这是一个很漂亮的问题，但很难记住所有的问题）；）