[英]Are Ant path-like structures immutable like properties?
与属性不同,类路径结构在Ant中是可变的。 每个后续更新都会更改以前的版本。
build.xml
<?xml version="1.0" encoding="utf-8"?>
<project name="AntPathTest" basedir=".">
<property name="foo" value="bar"/>
<property name="foo" value="baz"/>
<path id="spam">
<pathelement path="ham"/>
</path>
<path id="spam">
<pathelement path="eggs"/>
</path>
<echo message="foo => ${foo}"/>
<pathconvert property="spam" refid="spam"/>
<echo message="spam => ${spam}"/>
</project>
$ ant
输出 Buildfile: /path/to/AntPathTest/build.xml
[echo] foo => bar
[echo] spam => /path/to/AntPathTest/eggs
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