listing13-06_build.xml_usingextensionconditionally

来自「着几乎所有智能机厂商都将有自己配套的App Store,甚至并非智能手机制造商的」· XML_USINGEXTENSIONCONDITIONALLY 代码 · 共 9 行

<!-- use your extension conditionally by specifying the "if" or "unless" attributes: -->

<preprocessor
	name="fullscreen"
	if="polish.classes.fullscreen:defined"
>
	<parameter name="logfile" value="log.txt" />
</preprocessor>