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Discuz X 首页白板解决之道 - 建站技术 - 清泛IT论坛,有思想、有深度
...在合适位置打印特定内容然后exit(0);查看结果,分析出现问题的大致位置。可以毫不夸张地说,排除法能够解决99.99%的疑难杂症。
3、白板的最核心原因是调用函数 ob_end_clean() 函数导致的,先将输出内容清掉再把备份内容重新输...
App Inventor 2 中文网 · 升级日志
...验。 优化 优化部分功能;解决“翻译器”崩溃问题;部分文档翻译;菜单优化等。 230710 2023/07/10 全新 “密码修改”功能全新上线!如遗忘初始密码,请联系客服重置。 优化 优化部分功能...
C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
...问0x4的内存地址,不crash才怪。于是,你一定会有如下的问题:
1)为什么不是 13行if语句出错?f.a被初始化为空了嘛,用空指针访问成员变量为什么不crash?
2)为什么会访问到了0x4的地址?靠,4是怎么出来的?
3)代码中的...
Bill Gross超火爆演讲: 创业成功唯一最关键因素 - 资讯 - 清泛网 - 专注C/C++及内核技术
...业组织这么伟大,为什么他们中绝大部分都会失败?这个问题,是我想知道的,我希望找出真正能影响它们成功的关键性因素,而且,我想尝试用一种系统化的方式研究,以避免我一些直觉性的东西,以及因为过去经历我曾操盘...
What is the difference between a thread and a fiber?
.... This also means that the operating system can take advantage of multiple CPUs and CPU cores by running more than one thread at the same time and leaving it up to the developer to guard data access.
With fibers: the current execution path is only interrupted when the fiber yields execution (same n...
How do emulators work and how are they written? [closed]
... the NES, you have the PPU (pixel processing unit) which requires that the CPU put pixels into its memory at precise moments. If you use interpretation, you can easily count cycles and emulate proper timing; with dynamic/static recompilation, things are a /lot/ more complex.
Interrupt handling:
Int...
廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
...没有共享存储的情况下解决非结构化数据高可靠性存储的问题1、问题产生背景三台TOMCAT 服务器通过负载均衡设备对外提供WEB服务。怎么保证...在没有共享存储的情况下解决非结构化数据高可靠性存储的问题
1、问题产生背景
...
Best approach to remove time part of datetime in SQL Server
...nsive:
a) select DATEADD(dd, DATEDIFF(dd, 0, getdate()), 0)
Proven less CPU intensive for same total duration a million rows by some one with way too much time on their hands: Most efficient way in SQL Server to get date from date+time?
I saw a similar test elsewhere with similar results too.
I...
Why is Go so slow (compared to Java)?
... Generally, real world systems are constrained by IO not by CPU. Therefore, whether Go is 2x or 5x is slower hardly makes as much as a difference to capacity planning as failover, load balancing, caching, database topology and the like. This is why apps at the scale of YouTube can af...
创业第一年 太特么累了 - 资讯 - 清泛网 - 专注C/C++及内核技术
...吧?”。。。。。。;在考虑如何回答这些我都没想过的问题时,忽然感觉心里有一万只草泥马在奔腾,这货是故意来玩我的吧?再这么聊下去,估计我钱包里仅有的两百块钱也保不住,他留下还不祸害全公司的人。借口有事果...
