用ASTParser时，需要引入的包
org.eclipse.core.contenttype.jar
org.eclipse.core.jobs.jar
org.eclipse.core.resources.jar
org.eclipse.core.runtime.jar
org.eclipse.equinox.common.jar
org.eclipse.equinox.preferences.jar
org.eclipse.jdt.core.jar
org.eclipse.osgi.jar

真是搞死了。。。原来需要引入这么多才能用啊 ><