关于JAVA运算符中的++和--

public class PPMM{
public static void main(String[]args){
int x = 10;
x++;//x = x + 1;//后加加
System.out.println(x);
x--;//x = x - 1;//后减减
System.out.println(x);
++x;//x = x + 1;//前加加
System.out.println(x);
--x;// x = x - 1;//前减减
System.out.println(x);

int y = 20;

int z = y + x++;//先参于运算，再进行加加
System.out.println("z="+z);
System.out.println("x="+x);
z = y + x--;//先参于运算，再进行减减
System.out.println("z="+z);
System.out.println("x="+x);
x = 10;
y = 20;
z = y + ++x;//先加加，再参于运算
System.out.println("x="+x);
System.out.println("z="+z);

z = y + --x;//先加加，再参于运算
System.out.println("x="+x);
System.out.println("z="+z);
}
}本文出自 “she” 博客，请务必保留此出处http://375362she.blog.51cto.com/365362/168309