[{"createTime":1735734952000,"id":1,"img":"hwy_ms_500_252.jpeg","link":"https://activity.huaweicloud.com/cps.html?fromacct=261f35b6-af54-4511-a2ca-910fa15905d1&utm_source=V1g3MDY4NTY=&utm_medium=cps&utm_campaign=201905","name":"华为云秒杀","status":9,"txt":"华为云38元秒杀","type":1,"updateTime":1735747411000,"userId":3},{"createTime":1736173885000,"id":2,"img":"txy_480_300.png","link":"https://cloud.tencent.com/act/cps/redirect?redirect=1077&cps_key=edb15096bfff75effaaa8c8bb66138bd&from=console","name":"腾讯云秒杀","status":9,"txt":"腾讯云限量秒杀","type":1,"updateTime":1736173885000,"userId":3},{"createTime":1736177492000,"id":3,"img":"aly_251_140.png","link":"https://www.aliyun.com/minisite/goods?userCode=pwp8kmv3","memo":"","name":"阿里云","status":9,"txt":"阿里云2折起","type":1,"updateTime":1736177492000,"userId":3},{"createTime":1735660800000,"id":4,"img":"vultr_560_300.png","link":"https://www.vultr.com/?ref=9603742-8H","name":"Vultr","status":9,"txt":"Vultr送$100","type":1,"updateTime":1735660800000,"userId":3},{"createTime":1735660800000,"id":5,"img":"jdy_663_320.jpg","link":"https://3.cn/2ay1-e5t","name":"京东云","status":9,"txt":"京东云特惠专区","type":1,"updateTime":1735660800000,"userId":3},{"createTime":1735660800000,"id":6,"img":"new_ads.png","link":"https://www.iodraw.com/ads","name":"发布广告","status":9,"txt":"发布广告","type":1,"updateTime":1735660800000,"userId":3},{"createTime":1735660800000,"id":7,"img":"yun_910_50.png","link":"https://activity.huaweicloud.com/discount_area_v5/index.html?fromacct=261f35b6-af54-4511-a2ca-910fa15905d1&utm_source=aXhpYW95YW5nOA===&utm_medium=cps&utm_campaign=201905","name":"底部","status":9,"txt":"高性能云服务器2折起","type":2,"updateTime":1735660800000,"userId":3}]
assert
作用：我们使用assert这个宏来调试代码
语法：assert（bool表达式）
如果表达式为false，会调用std::cout<<abort函数，弹出对话框，
#include<iostream> #include<cassert> void main() { int x =0; assert(x);
system("pause"); }
弹出的对话框
特别注意*：ssert使用前必须包含头文件cassert
特别注意*：基本上所有的编译器在release模式下，assert都不能使用，debug模式下这个宏才有效，才可以使用
当我们不想用assert的时候，可以使用#define NDEBUG，但是一定要放在头文件cassert之前
#include<iostream> #define NDEBUG #include <cassert> void main(int b) { int x
= 0; assert(x); system("pause"); }
这里assert就不会执行
我们打开NDEBUG，看下里面
左键选择NDEBUG->右键->查看所有引用
#ifdef NDEBUG #define assert(expression) ((void)0) #else ...... ......
第一句意思是如果定义了NDEBUG，就让assert定义为空的意思，即assert不执行
static_assert
静态断言是在程序编译阶段有效，动态断言即assert是在程序运行的时候有效
语法：static_assert(表达式，"字符串")
当表达式为false时，会输出字符串
特别注意*：表达式必须是一个常量，不能是变量，因为static_assert是在编译阶段生效，而编译阶段变量的值无法确定，（因为变量可以被不同的方法调用，从而可能引起值的改变，所以它不确定），常量的值可以确定。
例：
static_assert(sizeeof(int*)==4,"x64")
这段代码含义是：如果int*大小不是4字节，那么就会输出x64
