Server端package main import ( "fmt" "net" ) func main() { listener, err := net.Listen("tcp", "127.0.0.1:8080") if err != nil { fmt.Println("Error listening:", err.Error()) return } defer listener.Close() fmt.Println("Listening on 127.0.0.1:8080") for { conn, err := listener.Accept() if err != nil { fmt.Println("Error accepting:", err.Error()) return } defer conn.Close() go processWorker(conn) } } func processWorker(conn net.Conn) { for { buf := make([]byte, 1024) n, err := conn.Read(buf) if er...

Server端package main import ( "fmt" "net" ) func main() { listener, err := net.Listen("tcp", "127.0.0.1:8080") if err != nil { fmt.Println("Error listening:", err.Error()) return } defer listener.Close() fmt.Println("Listening on 127.0.0.1:8080") for { conn, err := listener.Accept() if err != nil { fmt.Println("Error accepting:", err.Error()) return } defer conn.Close() go processWorker(conn) } } func processWorker(conn net.Conn) { for { buf := make([]byte, 1024) n, err := conn.Read(buf) if er...

package mylog import ( "fmt" "strings" "time" ) type LogLevel uint16 const ( DEBUG LogLevel = iota INFO WARNING ERROR FATAl ) func parseLogLevel(s string) LogLevel { s = strings.ToUpper(s) switch s { case "DEBUG": return DEBUG case "INFO": return INFO case "WARNING": return WARNING case "ERROR": return ERROR case "FATAL": return FATAl default: return DEBUG } } // Logger 结构体 type Logger struct { logLevel LogLevel } // Newlogger 构建函数 func Newlogger(levelStr string) Logger { level := parseLogLev...

package mylog import ( "fmt" "strings" "time" ) type LogLevel uint16 const ( DEBUG LogLevel = iota INFO WARNING ERROR FATAl ) func parseLogLevel(s string) LogLevel { s = strings.ToUpper(s) switch s { case "DEBUG": return DEBUG case "INFO": return INFO case "WARNING": return WARNING case "ERROR": return ERROR case "FATAL": return FATAl default: return DEBUG } } // Logger 结构体 type Logger struct { logLevel LogLevel } // Newlogger 构建函数 func Newlogger(levelStr string) Logger { level := parseLogLev...

提前通报要记得服务上线类：如果该上线会影响到相关团队的业务，则需要提前通报到相关团队；维护变更类：如果该维护操作会影响线上服务，则需要提前通报到相关方；故障处理类：处理线上异常时，确保自己或有团队成员协助将信息发布到相关群内进行通报；变更步骤要完备服务上线类：服务上线必须经过审核，严禁未经审核擅自对线上服务进行变更，紧急情况需得到审核人确认方可跳过审核；维护变更类：如有相关变更的SOP则严格按照SOP执行，没有SOP的变更须在严格遵守其余几条军规的前提下，拟订变更步骤后进行变更；故障处理类：有预案的严格执行预案，临时制定的预案需要得到leader的确认方可执行；回滚预案：任何线上变更都要事先准备好回滚预案，一旦操作中出现异常按预案执行回滚。无法回滚的变更需要相关各方及leader确认；分级发布要遵守灰度变更：所有线上变更不可以一次性作用到线上全部流量，至少分级为3步: 少量 --> 部分 --> 全量；暂停检查：生产环境中的第一次暂停，至少停留5分钟做观察，全量完成前的暂停时间不少于10分钟；高峰窗口要避免业务高峰期严禁进行服务上线或维护类变更，可按流程对影响服务稳定性/安全/重...

提前通报要记得服务上线类：如果该上线会影响到相关团队的业务，则需要提前通报到相关团队；维护变更类：如果该维护操作会影响线上服务，则需要提前通报到相关方；故障处理类：处理线上异常时，确保自己或有团队成员协助将信息发布到相关群内进行通报；变更步骤要完备服务上线类：服务上线必须经过审核，严禁未经审核擅自对线上服务进行变更，紧急情况需得到审核人确认方可跳过审核；维护变更类：如有相关变更的SOP则严格按照SOP执行，没有SOP的变更须在严格遵守其余几条军规的前提下，拟订变更步骤后进行变更；故障处理类：有预案的严格执行预案，临时制定的预案需要得到leader的确认方可执行；回滚预案：任何线上变更都要事先准备好回滚预案，一旦操作中出现异常按预案执行回滚。无法回滚的变更需要相关各方及leader确认；分级发布要遵守灰度变更：所有线上变更不可以一次性作用到线上全部流量，至少分级为3步: 少量 --> 部分 --> 全量；暂停检查：生产环境中的第一次暂停，至少停留5分钟做观察，全量完成前的暂停时间不少于10分钟；高峰窗口要避免业务高峰期严禁进行服务上线或维护类变更，可按流程对影响服务稳定性/安全/重...

Do you know how to keep food safe and fresh?Smart ShoppingThe first step in making sure food is safe and fresh is smart shopping, the report shows that almost 32 percent of the world’s food goes to waste every single year. the reason is that most of the food becomes spoiled like milk turns sour, bread goes stale, and fruits and vegetables get soft and mushy.We can cut down on food waste by buying only what we need for the next few days. if you buy a large amount of food, freeze any meat and p...

Do you know how to keep food safe and fresh?Smart ShoppingThe first step in making sure food is safe and fresh is smart shopping, the report shows that almost 32 percent of the world’s food goes to waste every single year. the reason is that most of the food becomes spoiled like milk turns sour, bread goes stale, and fruits and vegetables get soft and mushy.We can cut down on food waste by buying only what we need for the next few days. if you buy a large amount of food, freeze any meat and p...

It’s important to use the proper tone and format when writing Emails to colleagues and managers. Let’s learn how.Use a Professional EmailKeep your Email professional, so that the person who reads it knows your are serious about business, Do not use silly names or many numbers on your Email address.Address the Reader in a Kind but serious wayYou can address the reader with a word like “Hello“, followed by a comma, and then the person’s name. You do not want to make your email sound like you ar...

It’s important to use the proper tone and format when writing Emails to colleagues and managers. Let’s learn how.Use a Professional EmailKeep your Email professional, so that the person who reads it knows your are serious about business, Do not use silly names or many numbers on your Email address.Address the Reader in a Kind but serious wayYou can address the reader with a word like “Hello“, followed by a comma, and then the person’s name. You do not want to make your email sound like you ar...

Write a short, informal presentation about a new recipe app or make up your own product. Include relevant subheadings.we are proud to introduce our new product "Smart Recipe". the best recipe app you have ever seen in the app store for teaching people how to cook like a chef. no matter if you are a new hand at cooking or you're a professional cooker. this app can always bring you some new ideas.Your Cooking EncyclopediaYou could find tons of recipes people posted on our app from the whol...

Write a short, informal presentation about a new recipe app or make up your own product. Include relevant subheadings.we are proud to introduce our new product "Smart Recipe". the best recipe app you have ever seen in the app store for teaching people how to cook like a chef. no matter if you are a new hand at cooking or you're a professional cooker. this app can always bring you some new ideas.Your Cooking EncyclopediaYou could find tons of recipes people posted on our app from the whol...

sync.WaitGroupvar wg sync.WaitGroup func f1(i int) { defer wg.Done() time.Sleep(time.Second * time.Duration(rand.Intn(5))) fmt.Println(i) } func main() { for i := 0; i < 10; i++ { wg.Add(1) go f1(i) } wg.Wait() } channelvar wg sync.WaitGroup // 1. 启动一个goroutin 生成100个数发送到ch1 func f1(ch1 chan int) { defer wg.Done() for i := 0; i < 100; i++ { ch1 <- i } close(ch1) } // 2. 启用一个routine，从ch1中取值，计算平方放到ch2 func f2(ch1, ch2 chan int) { defer wg.Done() for { x, ok := <-ch1 if !ok { ...

sync.WaitGroupvar wg sync.WaitGroup func f1(i int) { defer wg.Done() time.Sleep(time.Second * time.Duration(rand.Intn(5))) fmt.Println(i) } func main() { for i := 0; i < 10; i++ { wg.Add(1) go f1(i) } wg.Wait() } channelvar wg sync.WaitGroup // 1. 启动一个goroutin 生成100个数发送到ch1 func f1(ch1 chan int) { defer wg.Done() for i := 0; i < 100; i++ { ch1 <- i } close(ch1) } // 2. 启用一个routine，从ch1中取值，计算平方放到ch2 func f2(ch1, ch2 chan int) { defer wg.Done() for { x, ok := <-ch1 if !ok { ...

fmt.Scan()函数：该函数从标准输入中读取用户输入，以空格分隔，将读取的内容存储在传递给函数的参数中。例如：package main import "fmt" func main() { var name string fmt.Print("请输入您的名字：") fmt.Scan(&name) fmt.Printf("您好，%s！", name) } bufio包：该包提供了一个bufio.Reader类型，它可以从标准输入中读取用户输入。例如：package main import ( "bufio" "fmt" "os" ) func main() { reader := bufio.NewReader(os.Stdin) fmt.Print("请输入您的名字：") name, _ := reader.ReadString('\n') fmt.Printf("您好，%s！", name) } 以上两种方式都可以从标准输入中获取内容。第一种方式使用起来比较简单，但是只能读取以空格分隔的内容；第二种方式可以读取任意长度的内容，但是使用起来稍微复杂一些。 使用fla...

fmt.Scan()函数：该函数从标准输入中读取用户输入，以空格分隔，将读取的内容存储在传递给函数的参数中。例如：package main import "fmt" func main() { var name string fmt.Print("请输入您的名字：") fmt.Scan(&name) fmt.Printf("您好，%s！", name) } bufio包：该包提供了一个bufio.Reader类型，它可以从标准输入中读取用户输入。例如：package main import ( "bufio" "fmt" "os" ) func main() { reader := bufio.NewReader(os.Stdin) fmt.Print("请输入您的名字：") name, _ := reader.ReadString('\n') fmt.Printf("您好，%s！", name) } 以上两种方式都可以从标准输入中获取内容。第一种方式使用起来比较简单，但是只能读取以空格分隔的内容；第二种方式可以读取任意长度的内容，但是使用起来稍微复杂一些。 使用fla...

package main import ( "errors" "fmt" "io/ioutil" "reflect" "strings" ) type MysqlConf struct { Address string `ini:"address"` Port string `ini:"port"` Username string `ini:"username"` Password string `ini:"password"` } type Redisconf struct { Host string `ini:"host"` Port string `ini:"port"` Password string `ini:"password"` Database string `ini:"database"` } type Conf struct { MysqlConf `ini:"mysql"` Redisconf `ini:"redis"` } func loadIni(fileName string, data interface{}) (err error) { t := ...

package main import ( "errors" "fmt" "io/ioutil" "reflect" "strings" ) type MysqlConf struct { Address string `ini:"address"` Port string `ini:"port"` Username string `ini:"username"` Password string `ini:"password"` } type Redisconf struct { Host string `ini:"host"` Port string `ini:"port"` Password string `ini:"password"` Database string `ini:"database"` } type Conf struct { MysqlConf `ini:"mysql"` Redisconf `ini:"redis"` } func loadIni(fileName string, data interface{}) (err error) { t := ...

Do you think in English?Article by: Simon Buckland, WSE InternationalFor example, when someone asks you a question in English, do you immediately think to yourself in English “Mmmh, how shall i answer this question?” Or do you mentally translate the question into your own language, find an answer in your own language, and then mentally translate the answer into English before speaking? It took me quite a long time to write that question - and it will take you quite a long time to do it. if yo...

Do you think in English?Article by: Simon Buckland, WSE InternationalFor example, when someone asks you a question in English, do you immediately think to yourself in English “Mmmh, how shall i answer this question?” Or do you mentally translate the question into your own language, find an answer in your own language, and then mentally translate the answer into English before speaking? It took me quite a long time to write that question - and it will take you quite a long time to do it. if yo...

Chrome安装钱包插件https://chrome.google.com/webstore/detail/leap-cosmos-wallet/fcfcfllfndlomdhbehjjcoimbgofdncg 生成新的钱包、记得保存助记词 切换到Sei 测试网切换到Sei Atlantic 2网络加入官网Discord中领取SEI作为Gashttps://discord.gg/sei 进入指定的Channel中输入领水代码 !faucet seixxxxxxxxxx （复制你的钱包地址；sei开头）!faucet sei103hg0z2cg03fvfdau2vq80yjtwqshxpz73u4l5领取USDC 用于组建LPusdc领水地址： https://usdcfaucet.sparrowswapxyz.com/重复5次；领取500USDC测试代币打开Swap网站：https://testnet.sparrowswap.xyz/链接你的小青蛙钱包1：选择把刚刚领取的 USDC 兑换成 SEI 2：这里只兑换350U，剩下150U后面要用到 ! 3：点击SWAP按钮，钱包确认...

Chrome安装钱包插件https://chrome.google.com/webstore/detail/leap-cosmos-wallet/fcfcfllfndlomdhbehjjcoimbgofdncg 生成新的钱包、记得保存助记词 切换到Sei 测试网切换到Sei Atlantic 2网络加入官网Discord中领取SEI作为Gashttps://discord.gg/sei 进入指定的Channel中输入领水代码 !faucet seixxxxxxxxxx （复制你的钱包地址；sei开头）!faucet sei103hg0z2cg03fvfdau2vq80yjtwqshxpz73u4l5领取USDC 用于组建LPusdc领水地址： https://usdcfaucet.sparrowswapxyz.com/重复5次；领取500USDC测试代币打开Swap网站：https://testnet.sparrowswap.xyz/链接你的小青蛙钱包1：选择把刚刚领取的 USDC 兑换成 SEI 2：这里只兑换350U，剩下150U后面要用到 ! 3：点击SWAP按钮，钱包确认...

一句话介绍以太坊L2四大天王：Optimism Arbitrum zkSync StarkNet StarkNet 是最受关注的以太坊 Layer2 之一，与 zkSync 同属于 zk-rollup 阵营。融资情况交互准备工作（如下3选一）钱包下载并且安装 https://www.argent.xyz/argent-x/ https://braavos.app/ https://www.dynamic.xyz/从跨桥资产开始官方跨桥工具（仅支持Eth1主网跨SkarkNet） https://starkgate.starknet.io/ 三方跨桥工具（更快更便宜、支持op/arb/eth/poly/bsc 到StarkNet） https://www.orbiter.finance/ 其他跨桥工具跨少量资产到StarkNet上Swap交互MySwap https://www.myswap.xyz/#/10kSwap https://10kswap.com/JediSwap https://jediswap.xyz/域名注册https://app.starknet.id/其他Da...

一句话介绍以太坊L2四大天王：Optimism Arbitrum zkSync StarkNet StarkNet 是最受关注的以太坊 Layer2 之一，与 zkSync 同属于 zk-rollup 阵营。融资情况交互准备工作（如下3选一）钱包下载并且安装 https://www.argent.xyz/argent-x/ https://braavos.app/ https://www.dynamic.xyz/从跨桥资产开始官方跨桥工具（仅支持Eth1主网跨SkarkNet） https://starkgate.starknet.io/ 三方跨桥工具（更快更便宜、支持op/arb/eth/poly/bsc 到StarkNet） https://www.orbiter.finance/ 其他跨桥工具跨少量资产到StarkNet上Swap交互MySwap https://www.myswap.xyz/#/10kSwap https://10kswap.com/JediSwap https://jediswap.xyz/域名注册https://app.starknet.id/其他Da...