1.系统变量中新建JAVA_HOME: c:ProgramJavaJDK1.8
Path:%JAVA_HOME%in;%JAVA_HOME%jrein;
classpath为java加载类(class or lib)路径,只有类在classpath中,java命令才能识别
设置为.;%JAVA_HOME%lib;%JAVA_HOME%lib ools.jar
alt+/代码自动提示