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好看、好用、强大的手写笔记软件综合评测：Notability、GoodNotes、MarginNote、随手写、Notes Writers、FlowUs

随后测评了包括 Notability、GoodNotes、MarginNote、随手写、Notes Writers、CollaNote、CollaNote、Prodrafts、Noteshelf、FlowUs.OneNote...随手写官网Notes Writers介绍App Store 上唯一一款将全功能文字处理器，强大的 PDF 编辑器和手写和草图引擎相结合的应用程序，可帮助您创建和编辑所有类型的笔记，草图和文本。...Notes Writers 官网CollaNote介绍强大的笔记应用程序，集 PDF 阅读器和注释器，白板，数字规划器于一体。

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configtx.yaml中文注解原

Readers: Type: Signature Rule: OR('example.com.member') Writers...Policies: Readers: Type: ImplicitMeta Rule: ANY Readers Writers...: Type: ImplicitMeta Rule: ANY Writers Admins: Type: ImplicitMeta...: Type: ImplicitMeta Rule: ANY Writers # Admin策略定义了修改本层级配置的许可规则...CommitChaincodeDefinition函数的ACL定义 _lifecycle/CommitChaincodeDefinition: /Channel/Application/Writers

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聊聊zerolog的LevelWriter

func (t multiLevelWriter) WriteLevel(l Level, p []byte) (n int, err error) { for _, w := range t.writers...If some writers // implement LevelWriter, their WriteLevel method will be used instead of Write. func...MultiLevelWriter(writers ...io.Writer) LevelWriter { lwriters := make([]LevelWriter, 0, len(writers...)) for _, w := range writers { if lw, ok := w....属性，它也实现了LevelWriter接口，其Write及WriteLevel方法均是遍历writers挨个执行对应操作；MultiLevelWriter方法通过levelWriterAdapter来适配

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python操作Mysql实例

localhost','root','123','test') cur=con.cursor() cur.execute("CREATE TABLE IF NOT EXISTS Writers...(Id INT PRIMARY KEY AUTO_INCREMENT, Name VARCHAR(25))") cur.execute("INSERT INTO Writers(Name)...VALUES('Jack London')") cur.execute("INSERT INTO Writers(Name) VALUES('Honore de Balzac')") ...cur.execute("INSERT INTO Writers(Name) VALUES('Lion Feuchtwanger')") cur.execute("INSERT INTO Writers...(Name) VALUES('Emile Zola')") cur.execute("INSERT INTO Writers(Name) VALUES('Truman Capote')")

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Elasticsearch问题汇总

>, Writer> writers = new HashMap(); writers.put(Boolean.class, (b, v) -> b.value((Boolean) v)); writers.put...) v)); writers.put(double[].class, (b, v) -> b.values((double[]) v)); writers.put(Float.class, (b, v)...((short[]) v)); writers.put(String.class, (b, v) -> b.value((String) v)); writers.put(String[].class,...>, Writer> writers = new HashMap(); writers.put(Boolean.class, (b, v) -> b.value((Boolean) v)); writers.put...) v)); writers.put(double[].class, (b, v) -> b.values((double[]) v)); writers.put(Float.class, (b, v)

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使用python实现可重入的公平读写锁

= 0: self.writers_waiting += 1 writers_ok= threading.Condition(self.monitor...) self.wait_writers_q.put(writers_ok) writers_ok.wait() self.writers_waiting...= 0: self.writers_waiting += 1 writers_ok= threading.Condition(self.monitor...) self.wait_writers_q.put(writers_ok) writers_ok.wait() self.writers_waiting...writers_ok=self.wait_writers_q.get_nowait() writers_ok.acquire() writers_ok.notify

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聊聊golang的zap的WriteSyncer

(ioutil.Discard) } return zapcore.Lock(zapcore.NewMultiWriteSyncer(writers...)) } func Open(...paths ...string) (zapcore.WriteSyncer, func(), error) { writers, close, err := open(paths) if...= nil { return nil, nil, err } writer := CombineWriteSyncers(writers...)...= append(writers, sink) closers = append(closers, sink) } if openErr !...= nil { close() return writers, nil, openErr } return writers, close, nil }

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Python操作MySQL数据库实例

'root', 'root', 'test'); with con: 获取连接的 cursor，只有获取了 cursor，我们才能进行各种操作 cur = con.cursor() 创建一个数据表 writers...(25))") 以下插入了 5 条数据 cur.execute("INSERT INTO Writers(Name) VALUES('Jack London')") cur.execute("INSERT...INTO Writers(Name) VALUES('Honore de Balzac')") cur.execute("INSERT INTO Writers(Name) VALUES('Lion...Feuchtwanger')") cur.execute("INSERT INTO Writers(Name) VALUES('Emile Zola')") cur.execute("INSERT INTO...Writers(Name) VALUES('Truman Capote')") 实例 3、 python 使用 slect 获取 mysql 的数据并遍历 import MySQLdb

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聊聊zerolog的LevelWriter

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python2.7 MySQLdb i

cur = con.cursor() # cur.execute("CREATE TABLE IF NOT EXISTS \ # Writers...(Id INT PRIMARY KEY AUTO_INCREMENT, Name VARCHAR(25))";"INSERT INTO Writers(Name) VALUES('Jack London...')") # cur.execute("INSERT INTO Writers(Name) VALUES('Jack London'),INSERT INTO Writers(Name)... VALUES('Honore de Balzac')") # sql = 'INSERT INTO Writers(Name) VALUES(%s)' # param ... INTO Writers(Name) VALUES('Truman Capote')") ''' def db_execute(sql): cursor = con.cursor

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Kotlin的流程控制

不同之处在于==还判断内部元素而===更多的是判断地址是否相同看下面两个例子 val authors = setOf("Shakespeare", "Hemingway", "Twain") val writers...= setOf("Twain", "Shakespeare", "Hemingway") println(authors == writers) // 1 println(authors ===...writers) // 2 上栗1的结果为true，2的结果为false，因为1是将内部数据排序然后比较数据，而2则是因为两个地址不同直接判断为false。...我们再看下里 val authors = setOf("Shakespeare", "Hemingway", "Twain") val writers = authors println(authors...== writers) // 1 println(authors === writers) // 2 根据上面的原理俩个的结果可定都是true 最后就是典型的三目？

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聊聊golang的zap的WriteSyncer

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ProxySQL 新版本对 MGR 的原生支持

For example in a 7 nodes clusters (Group of 7 members) where all nodes are writers (Multi-Primary mode...), it’s possible to decide to have only 2 writers, 3 readers and 2 backup-writers....This mean that ProxySQL will see all the nodes as possible writers but will only route writes on 2 nodes...(add them in the writer hostgroup, because we decided to limit it to 2 writers for example), then it...will add the others in the backup-writers group, this group defines the other writer candidates.

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Python操作MySQL数据库实例

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leveldb源码分析--写数据

mutex_); w.batch = updates; w.sync = options.sync; w.done = false; MutexLock l(&mutex_); writers...= writers_.front()) { w.cv.Wait(); } // 如数据写入完成，则退出（其他线程已帮忙完成数据写入） if (w.done) { return...last_sequence); } // 从写入队列中剔除此次已完成的写入，更新其为写入完成状态，并唤醒其等待的线程 while (true) { Writer* ready = writers..._.front(); writers_.pop_front(); if (ready !...writers_.empty()) { writers_.front()->cv.Signal(); } return status; }

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聊聊golang的zap的Sink

open zap@v1.16.0/writer.go func Open(paths ...string) (zapcore.WriteSyncer, func(), error) { writers...= nil { return nil, nil, err } writer := CombineWriteSyncers(writers...)...return writer, close, nil } func open(paths []string) ([]zapcore.WriteSyncer, func(), error) { writers...= append(writers, sink) closers = append(closers, sink) } if openErr !...= nil { close() return writers, nil, openErr } return writers, close, nil }

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pthread rwlock原理分析

single-writer lock or multi-reader lock) is a synchronization primitive that solves one of the readers–writers...When a writer is writing the data, all other writers or readers will be blocked until the writer is finished...__nr_writers_queued > 0) {//优先唤醒正在排队中的reader ++rwlock->__data....__nr_writers_queued > 0) { ++rwlock->__data....__nr_writers_queued) {//这里的逻辑是先判断是否有writer在排队，并优先唤醒writer ++rwlock->__data.

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聊聊golang的zap的Sink

返回 open zap@v1.16.0/writer.go func Open(paths ...string) (zapcore.WriteSyncer, func(), error) { writers...= nil { return nil, nil, err } writer := CombineWriteSyncers(writers...)...return writer, close, nil } func open(paths []string) ([]zapcore.WriteSyncer, func(), error) { writers...= append(writers, sink) closers = append(closers, sink) } if openErr !...= nil { close() return writers, nil, openErr } return writers, close, nil }

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中科院Kaggle全球文本匹配竞赛华人第1名团队-深度学习与特征工程

same intent can cause seekers to spend more time finding the best answer to their question, and make writers...Quora values canonical questions because they provide a better experience to active seekers and writers...make it easier to find high quality answers to questions resulting in an improved experience for Quora writers

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专栏：007：xpath使用及其实战

selector = etree.HTML(response) booknames = selector.xpath(self.Bookname_pattern_3) writers...self.Price_r_pattern_3) urls = selector.xpath(self.Url_pattern_3) All_data = [] for booknames, writers..., time, stars, details, price_n, price_r, urls in zip(booknames, writers, time, stars, details, price_n..., price_r, urls): data = { "bookname": booknames, "writers...": writers, "stars": stars, "details": details, "price_n

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点击加载更多

好看、好用、强大的手写笔记软件综合评测：Notability、GoodNotes、MarginNote、随手写、Notes Writers、FlowUs

configtx.yaml中文注解原

聊聊zerolog的LevelWriter

python操作Mysql实例

Elasticsearch问题汇总

使用python实现可重入的公平读写锁

聊聊golang的zap的WriteSyncer

Python操作MySQL数据库实例

聊聊zerolog的LevelWriter

python2.7 MySQLdb i

Kotlin的流程控制

聊聊golang的zap的WriteSyncer

ProxySQL 新版本对 MGR 的原生支持

Python操作MySQL数据库实例

leveldb源码分析--写数据

聊聊golang的zap的Sink

pthread rwlock原理分析

聊聊golang的zap的Sink

中科院Kaggle全球文本匹配竞赛华人第1名团队-深度学习与特征工程

专栏：007：xpath使用及其实战

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