go

How do I use gradle to generate go grpc code?

由 て烟熏妆下的殇ゞ 提交于 2021-01-27 05:21:07
问题 My build.gradle is able to generate protobuf code for Go. What do I need to change to make it generate grpc code for the Go code? apply plugin: 'com.google.protobuf' buildscript { dependencies { classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.3' } } def grpcVersion = '1.11.0' dependencies { compile "io.grpc:grpc-netty:${grpcVersion}" compile "io.grpc:grpc-protobuf:${grpcVersion}" compile "io.grpc:grpc-stub:${grpcVersion}" } protobuf { protoc { artifact = "com.google.protobuf:protoc

Getting Python version using Go

由 巧了我就是萌 提交于 2021-01-27 04:57:07
问题 I'm trying to get my Python version using Go: import ( "log" "os/exec" "strings" ) func verifyPythonVersion() { _, err := exec.LookPath("python") if err != nil { log.Fatalf("No python version located") } out, err := exec.Command("python", "--version").Output() log.Print(out) if err != nil { log.Fatalf("Error checking Python version with the 'python' command: %v", err) } fields := strings.Fields(string(out)) log.Print(fields) } func main() { verifyPythonVersion() } This returns empty slices:

js跳转页面与打开新窗口的方法

由 孤街醉人 提交于 2021-01-27 04:00:37
1.超链接<a href="http://www.jb51.net" title="脚本之家">Welcome</a> 等效于js代码 window.location.href="http://www.jb51.net"; //在同当前窗口中打开窗口 2.超链接<a href="http://www.jb51.net" title="脚本之家" target="_blank">Welcome</a> 等效于js代码 window.open("http://www.jb51.net"); //在另外新建窗口中打开窗口 //详细介绍 第一种： <script language=" JavaScript " type="text/ javascript "> window.location.href="http://www.dollare.com.cn/login. PHP ?backurl="+window.location.href; </script> 第二种： <script language="javascript"> alert("返回"); window.history.back(-1); </script> 第三种： <script language="javascript"> window.navigate("dollare. php "); </script> 第四种

Trouble getting a SubImage of an Image in Go

由 我与影子孤独终老i 提交于 2021-01-27 02:49:25
问题 I'm doing some image processing in Go, and I'm trying to get the SubImage of an Image. import ( "image/jpeg" "os" ) func main(){ image_file, err := os.Open("somefile.jpeg") my_image, err := jpeg.Decode(image_file) my_sub_image := my_image.SubImage(Rect(j, i, j+x_width, i+y_width)).(*image.RGBA) } When I try to compile that, I get .\img.go:8: picture.SubImage undefined (type image.Image has no field or method SubImage) . Any thoughts? 回答1: Here is an alternative approach - use a type assertion

基于机智云物联网平台MCU模式基础教程及远程OTA

由 对着背影说爱祢 提交于 2021-01-26 19:42:31
编写背景： 用户如果将开发了的产品发布上线销售，后期需要更新固件和程序，就需要用到远程OTA固件升级，就能对已发布的产品进行远程升级。 材料准备： 1. 机智云 4G模组GC211，此模组采用中移模组ML302，需烧录机智云 GAgent 固件，可在机智云淘宝店铺购买或者联系商务获取，此模组支持网络，移动，联通，电信4G网络，可前往机智云官方和淘宝店铺购买。 https://shop159680395.taobao.com/ 2.秉火【F103开发板-指南者】 正文： 云端部署 创建新产品，可根据自己需求选择。 添加如下数据点，可根据自己需求 生成 STM32 F103代码下载备用 简述STM32 启动 ARM7/ARM9 内核的控制器在复位后，CPU 会从存储空间的绝对地址0x000000 取出第一条指令执行复位中断服务程序的方式启动，即固定了复位后的起始地址为0x000000（PC =0x000000）同时中断向量表的位置并不是固定的。然而，Cortex-M3 内核启动有3 种情况： 1、通过boot 引脚设置可以将中断向量表定位于SRAM 区，即起始地址为0x2000000，同时复位后PC 指针位于0x2000000 处; 2、通过boot 引脚设置可以将中断向量表定位于FLASH 区，即起始地址为0x8000000，同时复位后PC 指针位于0x8000000 处; 3

encoding/json unmarshal missing a field

由 醉酒当歌 提交于 2021-01-26 19:15:11
问题 The following code unmarshal's the "Id", but not the "Hostname". Why? I've been staring at it for long enough now that if it's a typo I know I'll never spot it. Help please. (http://play.golang.org/p/DIRa2MvvAV) package main import ( "encoding/json" "fmt" ) type jsonStatus struct { Hostname string `json:host` Id string `json:id` } func main() { msg := []byte(`{"host":"Host","id":"Identifier"}`) status := new(jsonStatus) err := json.Unmarshal(msg, &status) if err != nil { fmt.Println(

encoding/json unmarshal missing a field

由 ぃ、小莉子 提交于 2021-01-26 19:15:08
问题 The following code unmarshal's the "Id", but not the "Hostname". Why? I've been staring at it for long enough now that if it's a typo I know I'll never spot it. Help please. (http://play.golang.org/p/DIRa2MvvAV) package main import ( "encoding/json" "fmt" ) type jsonStatus struct { Hostname string `json:host` Id string `json:id` } func main() { msg := []byte(`{"host":"Host","id":"Identifier"}`) status := new(jsonStatus) err := json.Unmarshal(msg, &status) if err != nil { fmt.Println(

宝塔Linux面板-安装golang环境

由 非 Y 不嫁゛ 提交于 2021-01-26 11:59:33
工作需要搭建go环境，特总结具体步骤做备忘， LAMP或者LNMP 环境 请使用宝塔来搭建，go环境搭建步骤如下： 1、打开官网 https://golang.google.cn/dl/ 获取下载地址： https://dl.google.com/go/go1.15.7.linux-amd64.tar.gz 2、下载并解压： cd /www/server && wget -O https://dl.google.com/go/go1.15.7.linux-amd64.tar.gz tar -xzvf go1.15.7.linux-amd64.tar.gz 3、添加环境变量，使用 打开/etc/profile 文件，在最底部添加： vi /etc/profile export GOROOT=/www/server/go export GOBIN=$GOROOT/bin export GOPKG=$GOROOT/pkg/tool/linux_amd64 export GOARCH=amd64 export GOOS=linux export GOPATH=/www/wwwroot/Golang export PATH=$PATH:$GOBIN:$GOPKG:$GOPATH/bin 4、执行下面命令使其生效： source /etc/profile 5、执行检查： go version

How to get namespace from current-context set in .kube/config

由 此生再无相见时 提交于 2021-01-26 11:06:09
问题 I am trying to get programmatically in Go, the namespace of the current-context from ~/.kube/config. So far what I tried is from these modules: "k8s.io/client-go/tools/clientcmd" "k8s.io/client-go/kubernetes" kubeconfig := filepath.Join( os.Getenv("HOME"), ".kube", "config", ) config, err := clientcmd.BuildConfigFromFlags("", kubeconfig) if err != nil { log.Fatal(err) } fmt.Printf("Namespace: %s\n", config.Namespace()) clientset, err := kubernetes.NewForConfig(config) if err != nil { log

How to get namespace from current-context set in .kube/config

由 ﹥＞﹥吖頭↗ 提交于 2021-01-26 11:04:08
问题 I am trying to get programmatically in Go, the namespace of the current-context from ~/.kube/config. So far what I tried is from these modules: "k8s.io/client-go/tools/clientcmd" "k8s.io/client-go/kubernetes" kubeconfig := filepath.Join( os.Getenv("HOME"), ".kube", "config", ) config, err := clientcmd.BuildConfigFromFlags("", kubeconfig) if err != nil { log.Fatal(err) } fmt.Printf("Namespace: %s\n", config.Namespace()) clientset, err := kubernetes.NewForConfig(config) if err != nil { log
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