Joe

Jvm监控工具的作用: 对JVM运行期间内部情况进行监控，比如JVM参数，CPU，内存，堆信息辅助进行性能调优辅助解决一些应用运行时的问题，比如OutOfMemoryError，内存泄漏，线程死锁，进程消耗CPU过高等 JPS

2022-12-19 Self-Study

java java-virtual-machine

GC概述引用计数法根搜索算法（虚拟机基本采用这个方法）引用分类强引用： Object a = new A() 不会被回收软引用：还有用但不是必须的对象，可以被回收，用softReference实现，回收掉

2022-12-15 Self-Study

java java-virtual-machine

Flex attributes flex-basis 定义在分配空间之前，元素所占大小 flex-grow 是指分配剩余空间，默认为0 flex-shrink 默认为1，指可以缩小，0为不能缩小 flex: none | [ &

2022-12-13 Self-Study

css front-end SASS

Jvm简介什么是jvm Java执行流程 JVM是Java平台无关的保障 Jvm规范 Jvm规范是针对编译出来的*.class文件的 Jvm能够实现开发语言无关 Jvm规范主要内容字节码指令集 Class文件格式数据类型和值运

2022-12-12 Self-Study

java java-virtual-machine

Responsive imagehttps://www.jianshu.com/p/607567e488fc what is responsive imagedisplay different versions of the same im

2022-12-10 Self-Study

css front-end SASS

Browoser Supportit means: if the clip-path or webkit-clip-path in parentheses apply for the browser, then, apply the fol

2022-12-10 Self-Study

css front-end SASS

max- and min- width in media query in desktop-first, using max-width in media query in mobile-first, using min-width in

2022-12-08 Self-Study

css front-end SASS

radial-gradient and linear-gradientradial： linear： ! translate could not be applied on inline elements eg: there is an

2022-12-06 Self-Study

css front-end SASS

Make color clip using linear-gradientbackground-image: linear-gradient(100deg, rgba($color-white, .9) 50%, trans

2022-12-03 Self-Study

css front-end SASS

choose direct children element VS choose all elements below Use background-blend-mode:this attribute only takes effect

2022-12-01 Self-Study

css front-end SASS