Ant 用特征控制Ant
?输出，在特征output在定义时输出内容，未定义时不输出内容，与特征的值无关：
? ? 或
输出：
?输出：
e:\antspace\property>antBuildfile: e:\antspace\property\build.xmlmkbuild: [delete] Deleting directory e:\antspace\property\build [mkdir] Created dir: e:\antspace\property\buildbuildjava:BUILD SUCCESSFULTotal time: 0 secondse:\antspace\property>ant -Dbuild=aBuildfile: e:\antspace\property\build.xmlmkbuild: [delete] Deleting directory e:\antspace\property\build [mkdir] Created dir: e:\antspace\property\buildbuildjava: [javac] Compiling 1 source file to e:\antspace\property\buildBUILD SUCCESSFULTotal time: 0 seconds?
?
