public class GuanXi {
public static void main(String[] args) {
System.out.println(10<20);//true
System.out.println(10<=20);//true
System.out.println(10==20);//false
System.out.println(10>=20);//false
System.out.println(10>20);//false
System.out.println(10!=20);//true
}
}