error: failed to push some refs to ‘https://gitee.com/lvjiangshan/redmine/’ hint: Updates were rejected because the tip of your current branch is behind To https://gitee.com/lvjiangshan/redmine/ hint: its remote counterpart. Integrate the remote changes …
pycharm下载CoolProp
pycharm的项目环境为python3.9,下载CoolProp出现错误代码: 错误代码如下:
Encountered error while trying to install package.coolpropnote: This is an issue with the package mentioned above, not pip.
hint: Se…
逻辑sql注入 This is the third post in a series covering some of the thought processes and methodologies used when developing detections for offensive techniques. In the previous posts Jonathan Johnson discussed research and data modeling. 这是本系列的第三篇…
C中的lazy evaluation or call-by-need(延迟计算或按需调用)是一种求值策略,其中表达式在第一次使用之前不求值,即将求值推迟到真正需要时。 为一个最终可能不需要的计算付出性能代价显然不是明智之举。然而在复杂的代码中这种情况比比皆是。我们不应该执…
Spring IoC (ApplicationContext) 容器一般都会在启动的时候实例化所有单实例 bean 。如果我们想要 Spring 在启动的时候延迟加载 bean,即在调用某个 bean 的时候再去初始化,那么就可以使用 Lazy 注解。 Duang,最近搭建…