public class Demo01 {}
public static void main(String[] args) {
String a="Hello";
System.out.println(a);
}
错误: 找不到或无法加载主类 Demo01
public class Demo01 {}
public static void main(String[] args) {
String a="Hello";
System.out.println(a);
}
错误: 找不到或无法加载主类 Demo01