public class Demo{
public static void main(String[] args){
//++ -- 自增,自减 一元运算
int a = 4;
int b = a++;
int c = ++a;
System.out.println("a="a);//a=6
System.out.println("b="b);//b=4
System.out.println("c="c);//c=6
}
}
a,b,c解释如下:
int a = 4;
int b = a++;//执行完这行代码,先给b赋值,在自增
//a++中的++ a = a + 1
//++a中的++ a = a + 1
int c = ++a;//先自增,再给c赋值
原文:https://www.cnblogs.com/guoguodong/p/14803103.html