¹ØÓÚjavaµÄ++ºÍ

public class JavaPlus {

public static void main(String[] args) {
int x = 5;
x++;// x = x + 1;//ºó¼Ó¼Ó
System.out.println(x);
x--;// x = x - 1;//ºó¼õ¼õ
System.out.println(x);
++x;// x = x + 1;//Ç°¼Ó¼Ó
System.out.println(x);
--x;// x = x - 1;//Ç°¼õ¼õ
System.out.println(x);

int y = 20;
int z = y + x++;// ÏȲÎÓÚÔËË㣬ÔÙ½øÐмӼÓ
System.out.println("z=" + z);
System.out.println("x=" + x);
z = y + x--;// ÏȲÎÓÚÔËË㣬ÔÙ½øÐмõ¼õ
System.out.println("z=" + z);
System.out.println("x=" + x);
x = 10;
y = 20;
z = y + ++x;// ÏȼӼӣ¬ÔÙ²ÎÓÚÔËËã
System.out.println("x=" + x);
System.out.println("z=" + z);

z = y + --x;// ÏȼӼӣ¬ÔÙ²ÎÓÚÔËËã
System.out.println("x=" + x);
System.out.println("z=" + z);
}
}
¿ØÖÆ̨Êä³ö:
6
5
6
5
z=25
x=6
z=26
x=5
x=11
z=31
x=10
z=30