一.为什么需要代理模式 假设需实现一个计算的类Math.完成加.减.乘.除功能,如下所示: package com.zhangguo.Spring041.aop01; public class Math { //加 public int add(int n1,int n2){ int result=n1+n2; System.out.println(n1+"+"+n2+"="+result); return result; } //减 public int sub(
在学习Linux驱动的过程中,遇到一个宏叫做container_of.该宏定义在include/linux/kernel.h中,首先来贴出它的代码: /** * container_of - cast a member of a structure out to the containing structure * @ptr: the pointer to the member. * @type: the type of the container struct thi